117642976 has 72 divisors (see below), whose sum is σ = 265848912. Its totient is φ = 51110400.

The previous prime is 117642911. The next prime is 117642979. The reversal of 117642976 is 679246711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117642979) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 88396 + ... + 89716.

It is an arithmetic number, because the mean of its divisors is an integer number (3692346).

Almost surely, 2^117642976 is an apocalyptic number.

117642976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117642976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132924456).

117642976 is an abundant number, since it is smaller than the sum of its proper divisors (148205936).

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

117642976 is a wasteful number, since it uses less digits than its factorization.

117642976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376 (or 1357 counting only the distinct ones).

The product of its digits is 127008, while the sum is 43.

The square root of 117642976 is about 10846.3346804347. The cubic root of 117642976 is about 489.9916366752.

The spelling of 117642976 in words is "one hundred seventeen million, six hundred forty-two thousand, nine hundred seventy-six".