117290916 has 60 divisors (see below), whose sum is σ = 307643952. Its totient is φ = 38966832.

The previous prime is 117290909. The next prime is 117290917. The reversal of 117290916 is 619092711.

It is a super-3 number, since 3×117290916³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (117290917) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 182091 + ... + 182733.

Almost surely, 2^117290916 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 117290916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153821976).

117290916 is an abundant number, since it is smaller than the sum of its proper divisors (190353036).

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

117290916 is a wasteful number, since it uses less digits than its factorization.

117290916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222 (or 1211 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 36.

The square root of 117290916 is about 10830.0930743923. The cubic root of 117290916 is about 489.5023630275.

It can be divided in two parts, 11 and 7290916, that added together give a palindrome (7290927).

The spelling of 117290916 in words is "one hundred seventeen million, two hundred ninety thousand, nine hundred sixteen".