31946996 has 6 divisors (see below), whose sum is σ = 55907250. Its totient is φ = 15973496.

The previous prime is 31946989. The next prime is 31947011. The reversal of 31946996 is 69964913.

It can be written as a sum of positive squares in only one way, i.e., 31248100 + 698896 = 5590^2 + 836^2 .

It is a super-2 number, since 2×31946996² = 2041221106848032, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31946996.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3993371 + ... + 3993378.

It is an arithmetic number, because the mean of its divisors is an integer number (9317875).

Almost surely, 2^31946996 is an apocalyptic number.

It is an amenable number.

31946996 is a deficient number, since it is larger than the sum of its proper divisors (23960254).

31946996 is a wasteful number, since it uses less digits than its factorization.

31946996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7986753 (or 7986751 counting only the distinct ones).

The product of its digits is 314928, while the sum is 47.

The square root of 31946996 is about 5652.1673719026. The cubic root of 31946996 is about 317.3048247620.

The spelling of 31946996 in words is "thirty-one million, nine hundred forty-six thousand, nine hundred ninety-six".