3850645 has 4 divisors (see below), whose sum is σ = 4620780. Its totient is φ = 3080512.

The previous prime is 3850633. The next prime is 3850657. The reversal of 3850645 is 5460583.

3850645 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.

It is an interprime number because it is at equal distance from previous prime (3850633) and next prime (3850657).

It can be written as a sum of positive squares in 2 ways, for example, as 2502724 + 1347921 = 1582^2 + 1161^2 .

It is a cyclic number.

It is not a de Polignac number, because 3850645 - 2¹¹ = 3848597 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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, 385060 + ... + 385069.

It is an arithmetic number, because the mean of its divisors is an integer number (1155195).

Almost surely, 2^3850645 is an apocalyptic number.

It is an amenable number.

3850645 is a deficient number, since it is larger than the sum of its proper divisors (770135).

3850645 is an equidigital number, since it uses as much as digits as its factorization.

3850645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770134.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 3850645 is about 1962.3060413707. The cubic root of 3850645 is about 156.7392727190.

The spelling of 3850645 in words is "three million, eight hundred fifty thousand, six hundred forty-five".