31764994 has 16 divisors (see below), whose sum is σ = 48372480. Its totient is φ = 15642720.

The previous prime is 31764991. The next prime is 31765007. The reversal of 31764994 is 49946713.

It is a self number, because there is not a number n which added to its sum of digits gives 31764994.

It is not an unprimeable number, because it can be changed into a prime (31764991) 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, 55542 + ... + 56110.

It is an arithmetic number, because the mean of its divisors is an integer number (3023280).

Almost surely, 2^31764994 is an apocalyptic number.

31764994 is a deficient number, since it is larger than the sum of its proper divisors (16607486).

31764994 is a wasteful number, since it uses less digits than its factorization.

31764994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945.

The product of its digits is 163296, while the sum is 43.

The square root of 31764994 is about 5636.0441800965. The cubic root of 31764994 is about 316.7011151197.

The spelling of 31764994 in words is "thirty-one million, seven hundred sixty-four thousand, nine hundred ninety-four".