117329856 has 56 divisors (see below), whose sum is σ = 354787200. Its totient is φ = 33522432.

The previous prime is 117329833. The next prime is 117329867. The reversal of 117329856 is 658923711.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42306 + ... + 44993.

Almost surely, 2^117329856 is an apocalyptic number.

117329856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

117329856 is an abundant number, since it is smaller than the sum of its proper divisors (237457344).

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

117329856 is an equidigital number, since it uses as much as digits as its factorization.

117329856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87321 (or 87311 counting only the distinct ones).

The product of its digits is 90720, while the sum is 42.

The square root of 117329856 is about 10831.8906936878. The cubic root of 117329856 is about 489.5565278160.

The spelling of 117329856 in words is "one hundred seventeen million, three hundred twenty-nine thousand, eight hundred fifty-six".