3715685 has 4 divisors (see below), whose sum is σ = 4458828. Its totient is φ = 2972544.

The previous prime is 3715669. The next prime is 3715687. The reversal of 3715685 is 5865173.

3715685 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: 5865173 = 41 ⋅143053.

It can be written as a sum of positive squares in 2 ways, for example, as 1682209 + 2033476 = 1297^2 + 1426^2 .

It is a cyclic number.

It is not a de Polignac number, because 3715685 - 2⁴ = 3715669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3715687) 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, 371564 + ... + 371573.

It is an arithmetic number, because the mean of its divisors is an integer number (1114707).

Almost surely, 2^3715685 is an apocalyptic number.

It is an amenable number.

3715685 is a deficient number, since it is larger than the sum of its proper divisors (743143).

3715685 is an equidigital number, since it uses as much as digits as its factorization.

3715685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743142.

The product of its digits is 25200, while the sum is 35.

The square root of 3715685 is about 1927.6112159873. The cubic root of 3715685 is about 154.8862849602.

The spelling of 3715685 in words is "three million, seven hundred fifteen thousand, six hundred eighty-five".