117383816 has 64 divisors (see below), whose sum is σ = 248520960. Its totient is φ = 51520000.

The previous prime is 117383813. The next prime is 117383831. The reversal of 117383816 is 618383711.

It is a self number, because there is not a number n which added to its sum of digits gives 117383816.

It is not an unprimeable number, because it can be changed into a prime (117383813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 417596 + ... + 417876.

It is an arithmetic number, because the mean of its divisors is an integer number (3883140).

Almost surely, 2^117383816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117383816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124260480).

117383816 is an abundant number, since it is smaller than the sum of its proper divisors (131137144).

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

117383816 is a wasteful number, since it uses less digits than its factorization.

117383816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446 (or 442 counting only the distinct ones).

The product of its digits is 24192, while the sum is 38.

The square root of 117383816 is about 10834.3812006039. The cubic root of 117383816 is about 489.6315653286.

The spelling of 117383816 in words is "one hundred seventeen million, three hundred eighty-three thousand, eight hundred sixteen".