31364994 has 16 divisors (see below), whose sum is σ = 64753920. Its totient is φ = 10117680.

The previous prime is 31364981. The next prime is 31364999. The reversal of 31364994 is 49946313.

It is not an unprimeable number, because it can be changed into a prime (31364999) 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, 84129 + ... + 84500.

It is an arithmetic number, because the mean of its divisors is an integer number (4047120).

Almost surely, 2^31364994 is an apocalyptic number.

31364994 is an abundant number, since it is smaller than the sum of its proper divisors (33388926).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31364994 is a wasteful number, since it uses less digits than its factorization.

31364994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168665.

The product of its digits is 69984, while the sum is 39.

The square root of 31364994 is about 5600.4458751067. The cubic root of 31364994 is about 315.3661451652.

The spelling of 31364994 in words is "thirty-one million, three hundred sixty-four thousand, nine hundred ninety-four".