31668982 has 16 divisors (see below), whose sum is σ = 48771072. Its totient is φ = 15417640.

The previous prime is 31668979. The next prime is 31668983. The reversal of 31668982 is 28986613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31668983) 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, 10443 + ... + 13129.

It is an arithmetic number, because the mean of its divisors is an integer number (3048192).

Almost surely, 2^31668982 is an apocalyptic number.

31668982 is a deficient number, since it is larger than the sum of its proper divisors (17102090).

31668982 is a wasteful number, since it uses less digits than its factorization.

31668982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2843.

The product of its digits is 124416, while the sum is 43.

The square root of 31668982 is about 5627.5200577164. The cubic root of 31668982 is about 316.3817090580.

The spelling of 31668982 in words is "thirty-one million, six hundred sixty-eight thousand, nine hundred eighty-two".