31630082 has 16 divisors (see below), whose sum is σ = 52736832. Its totient is φ = 14105520.

The previous prime is 31630073. The next prime is 31630087. The reversal of 31630082 is 28003613.

It is not an unprimeable number, because it can be changed into a prime (31630087) 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, 12398 + ... + 14729.

It is an arithmetic number, because the mean of its divisors is an integer number (3296052).

Almost surely, 2^31630082 is an apocalyptic number.

31630082 is a deficient number, since it is larger than the sum of its proper divisors (21106750).

31630082 is a wasteful number, since it uses less digits than its factorization.

31630082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27193.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 31630082 is about 5624.0627663638. The cubic root of 31630082 is about 316.2521154696.

Adding to 31630082 its reverse (28003613), we get a palindrome (59633695).

The spelling of 31630082 in words is "thirty-one million, six hundred thirty thousand, eighty-two".