3930931 has 8 divisors (see below), whose sum is σ = 4062960. Its totient is φ = 3800832.

The previous prime is 3930923. The next prime is 3930973. The reversal of 3930931 is 1390393.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3930931 - 2³ = 3930923 is a prime.

It is a super-2 number, since 2×3930931² = 30904437053522, which contains 22 as substring.

It is a Duffinian number.

3930931 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3930931.

It is not an unprimeable number, because it can be changed into a prime (3930331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4455 + ... + 5263.

It is an arithmetic number, because the mean of its divisors is an integer number (507870).

Almost surely, 2^3930931 is an apocalyptic number.

3930931 is a deficient number, since it is larger than the sum of its proper divisors (132029).

3930931 is a wasteful number, since it uses less digits than its factorization.

3930931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965.

The product of its (nonzero) digits is 2187, while the sum is 28.

The square root of 3930931 is about 1982.6575599432. The cubic root of 3930931 is about 157.8211269538.

It can be divided in two parts, 39309 and 31, that added together give a triangular number (39340 = T₂₈₀).

The spelling of 3930931 in words is "three million, nine hundred thirty thousand, nine hundred thirty-one".