31699494 has 24 divisors (see below), whose sum is σ = 71051760. Its totient is φ = 10201968.

The previous prime is 31699483. The next prime is 31699501. The reversal of 31699494 is 49499613.

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 in 11 ways as a sum of consecutive naturals, for example, 29842 + ... + 30885.

It is an arithmetic number, because the mean of its divisors is an integer number (2960490).

Almost surely, 2^31699494 is an apocalyptic number.

31699494 is an abundant number, since it is smaller than the sum of its proper divisors (39352266).

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

31699494 is a wasteful number, since it uses less digits than its factorization.

31699494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60764 (or 60761 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 31699494 is about 5630.2303682887. The cubic root of 31699494 is about 316.4832841587.

The spelling of 31699494 in words is "thirty-one million, six hundred ninety-nine thousand, four hundred ninety-four".