3931231368 has 32 divisors (see below), whose sum is σ = 10406201760. Its totient is φ = 1233327360.

The previous prime is 3931231361. The next prime is 3931231373. The reversal of 3931231368 is 8631321393.

It is not an unprimeable number, because it can be changed into a prime (3931231361) 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, 4817278 + ... + 4818093.

It is an arithmetic number, because the mean of its divisors is an integer number (325193805).

Almost surely, 2^3931231368 is an apocalyptic number.

It is an amenable number.

3931231368 is an abundant number, since it is smaller than the sum of its proper divisors (6474970392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3931231368 is a wasteful number, since it uses less digits than its factorization.

3931231368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9635397 (or 9635393 counting only the distinct ones).

The product of its digits is 69984, while the sum is 39.

The square root of 3931231368 is about 62699.5324384481. The cubic root of 3931231368 is about 1578.2514662997.

The spelling of 3931231368 in words is "three billion, nine hundred thirty-one million, two hundred thirty-one thousand, three hundred sixty-eight".