3931339 has 4 divisors (see below), whose sum is σ = 3937824. Its totient is φ = 3924856.

The previous prime is 3931331. The next prime is 3931349. The reversal of 3931339 is 9331393.

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 3931339 - 2³ = 3931331 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3931339.

It is not an unprimeable number, because it can be changed into a prime (3931331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2227 + ... + 3580.

It is an arithmetic number, because the mean of its divisors is an integer number (984456).

Almost surely, 2^3931339 is an apocalyptic number.

3931339 is a deficient number, since it is larger than the sum of its proper divisors (6485).

3931339 is an equidigital number, since it uses as much as digits as its factorization.

3931339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6484.

The product of its digits is 6561, while the sum is 31.

The square root of 3931339 is about 1982.7604494744. The cubic root of 3931339 is about 157.8265869659.

It can be divided in two parts, 39 and 31339, that multiplied together give a palindrome (1222221).

The spelling of 3931339 in words is "three million, nine hundred thirty-one thousand, three hundred thirty-nine".