117660939 has 64 divisors (see below), whose sum is σ = 193536000. Its totient is φ = 62726400.

The previous prime is 117660923. The next prime is 117660947. The reversal of 117660939 is 939066711.

It is not a de Polignac number, because 117660939 - 2⁴ = 117660923 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117660939.

It is not an unprimeable number, because it can be changed into a prime (117660919) 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 63 ways as a sum of consecutive naturals, for example, 591162 + ... + 591360.

It is an arithmetic number, because the mean of its divisors is an integer number (3024000).

Almost surely, 2^117660939 is an apocalyptic number.

117660939 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

117660939 is a deficient number, since it is larger than the sum of its proper divisors (75875061).

117660939 is a wasteful number, since it uses less digits than its factorization.

117660939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296.

The product of its (nonzero) digits is 61236, while the sum is 42.

The square root of 117660939 is about 10847.1627165817. The cubic root of 117660939 is about 490.0165744775.

The spelling of 117660939 in words is "one hundred seventeen million, six hundred sixty thousand, nine hundred thirty-nine".