31923996 has 24 divisors (see below), whose sum is σ = 80219664. Its totient is φ = 9822720.

The previous prime is 31923989. The next prime is 31924001. The reversal of 31923996 is 69932913.

It is a happy number.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102165 + ... + 102476.

It is an arithmetic number, because the mean of its divisors is an integer number (3342486).

Almost surely, 2^31923996 is an apocalyptic number.

It is an amenable number.

31923996 is an abundant number, since it is smaller than the sum of its proper divisors (48295668).

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

31923996 is a wasteful number, since it uses less digits than its factorization.

31923996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204661 (or 204659 counting only the distinct ones).

The product of its digits is 78732, while the sum is 42.

The square root of 31923996 is about 5650.1323878295. The cubic root of 31923996 is about 317.2286594051.

The spelling of 31923996 in words is "thirty-one million, nine hundred twenty-three thousand, nine hundred ninety-six".