3690931 has 4 divisors (see below), whose sum is σ = 3696112. Its totient is φ = 3685752.

The previous prime is 3690923. The next prime is 3690941. The reversal of 3690931 is 1390963.

3690931 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 a cyclic number.

It is not a de Polignac number, because 3690931 - 2³ = 3690923 is a prime.

It is a super-2 number, since 2×3690931² = 27245943293522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3690893 and 3690902.

It is not an unprimeable number, because it can be changed into a prime (3690941) 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, 1311 + ... + 3016.

It is an arithmetic number, because the mean of its divisors is an integer number (924028).

Almost surely, 2^3690931 is an apocalyptic number.

3690931 is a deficient number, since it is larger than the sum of its proper divisors (5181).

3690931 is an equidigital number, since it uses as much as digits as its factorization.

3690931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5180.

The product of its (nonzero) digits is 4374, while the sum is 31.

The square root of 3690931 is about 1921.1795855672. The cubic root of 3690931 is about 154.5415660236.

Subtracting from 3690931 its reverse (1390963), we obtain a cube (2299968 = 132³).

The spelling of 3690931 in words is "three million, six hundred ninety thousand, nine hundred thirty-one".