3707845 has 4 divisors (see below), whose sum is σ = 4449420. Its totient is φ = 2966272.

The previous prime is 3707839. The next prime is 3707849. The reversal of 3707845 is 5487073.

3707845 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5487073 = 17 ⋅322769.

It can be written as a sum of positive squares in 2 ways, for example, as 1896129 + 1811716 = 1377^2 + 1346^2 .

It is a cyclic number.

It is not a de Polignac number, because 3707845 - 2⁵ = 3707813 is a prime.

It is a super-3 number, since 3×3707845³ (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 3707845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3707849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370780 + ... + 370789.

It is an arithmetic number, because the mean of its divisors is an integer number (1112355).

Almost surely, 2^3707845 is an apocalyptic number.

It is an amenable number.

3707845 is a deficient number, since it is larger than the sum of its proper divisors (741575).

3707845 is an equidigital number, since it uses as much as digits as its factorization.

3707845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741574.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 3707845 is about 1925.5765370403. The cubic root of 3707845 is about 154.7772728911. Note that the first 3 decimals are identical.

The spelling of 3707845 in words is "three million, seven hundred seven thousand, eight hundred forty-five".