31632668 has 6 divisors (see below), whose sum is σ = 55357176. Its totient is φ = 15816332.

The previous prime is 31632637. The next prime is 31632691. The reversal of 31632668 is 86623613.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3954080 + ... + 3954087.

It is an arithmetic number, because the mean of its divisors is an integer number (9226196).

Almost surely, 2^31632668 is an apocalyptic number.

It is an amenable number.

31632668 is a deficient number, since it is larger than the sum of its proper divisors (23724508).

31632668 is a wasteful number, since it uses less digits than its factorization.

31632668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7908171 (or 7908169 counting only the distinct ones).

The product of its digits is 31104, while the sum is 35.

The square root of 31632668 is about 5624.2926666382. The cubic root of 31632668 is about 316.2607339074.

The spelling of 31632668 in words is "thirty-one million, six hundred thirty-two thousand, six hundred sixty-eight".