31968952 has 32 divisors (see below), whose sum is σ = 61776000. Its totient is φ = 15501024.

The previous prime is 31968949. The next prime is 31968953. The reversal of 31968952 is 25986913.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a junction number, because it is equal to n+sod(n) for n = 31968899 and 31968908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31968953) 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, 68223 + ... + 68689.

It is an arithmetic number, because the mean of its divisors is an integer number (1930500).

Almost surely, 2^31968952 is an apocalyptic number.

It is an amenable number.

31968952 is a deficient number, since it is larger than the sum of its proper divisors (29807048).

31968952 is a wasteful number, since it uses less digits than its factorization.

31968952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715 (or 711 counting only the distinct ones).

The product of its digits is 116640, while the sum is 43.

The square root of 31968952 is about 5654.1093020917. The cubic root of 31968952 is about 317.3774987764.

The spelling of 31968952 in words is "thirty-one million, nine hundred sixty-eight thousand, nine hundred fifty-two".