31394984 has 16 divisors (see below), whose sum is σ = 59126100. Its totient is φ = 15628032.

The previous prime is 31394983. The next prime is 31395029. The reversal of 31394984 is 48949313.

It can be written as a sum of positive squares in 2 ways, for example, as 31114084 + 280900 = 5578^2 + 530^2 .

It is not an unprimeable number, because it can be changed into a prime (31394983) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 6737 + ... + 10400.

Almost surely, 2^31394984 is an apocalyptic number.

It is an amenable number.

31394984 is a deficient number, since it is larger than the sum of its proper divisors (27731116).

31394984 is a wasteful number, since it uses less digits than its factorization.

31394984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17372 (or 17368 counting only the distinct ones).

The product of its digits is 93312, while the sum is 41.

The square root of 31394984 is about 5603.1227007803. The cubic root of 31394984 is about 315.4666268029.

The spelling of 31394984 in words is "thirty-one million, three hundred ninety-four thousand, nine hundred eighty-four".