31923934 has 16 divisors (see below), whose sum is σ = 55036800. Its totient is φ = 13604184.

The previous prime is 31923929. The next prime is 31923989. The reversal of 31923934 is 43932913.

It is a self number, because there is not a number n which added to its sum of digits gives 31923934.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3864 + ... + 8875.

It is an arithmetic number, because the mean of its divisors is an integer number (3439800).

Almost surely, 2^31923934 is an apocalyptic number.

31923934 is a deficient number, since it is larger than the sum of its proper divisors (23112866).

31923934 is a wasteful number, since it uses less digits than its factorization.

31923934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12927.

The product of its digits is 17496, while the sum is 34.

The square root of 31923934 is about 5650.1269012297. The cubic root of 31923934 is about 317.2284540404.

The spelling of 31923934 in words is "thirty-one million, nine hundred twenty-three thousand, nine hundred thirty-four".