117971764 has 12 divisors (see below), whose sum is σ = 206584000. Its totient is φ = 58947768.

The previous prime is 117971753. The next prime is 117971831. The reversal of 117971764 is 467179711.

It is a self number, because there is not a number n which added to its sum of digits gives 117971764.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1884 + ... + 15475.

Almost surely, 2^117971764 is an apocalyptic number.

It is an amenable number.

117971764 is a deficient number, since it is larger than the sum of its proper divisors (88612236).

117971764 is a wasteful number, since it uses less digits than its factorization.

117971764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19062 (or 19060 counting only the distinct ones).

The product of its digits is 74088, while the sum is 43.

The square root of 117971764 is about 10861.4807461966. The cubic root of 117971764 is about 490.4476874731.

The spelling of 117971764 in words is "one hundred seventeen million, nine hundred seventy-one thousand, seven hundred sixty-four".