117800072 has 32 divisors (see below), whose sum is σ = 251861400. Its totient is φ = 51170304.

The previous prime is 117800069. The next prime is 117800087. The reversal of 117800072 is 270008711.

It can be written as a sum of positive squares in 4 ways, for example, as 82919236 + 34880836 = 9106^2 + 5906^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

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, 31547 + ... + 35082.

Almost surely, 2^117800072 is an apocalyptic number.

It is an amenable number.

117800072 is an abundant number, since it is smaller than the sum of its proper divisors (134061328).

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

117800072 is a wasteful number, since it uses less digits than its factorization.

117800072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66665 (or 66661 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 26.

The square root of 117800072 is about 10853.5741578523. The cubic root of 117800072 is about 490.2096451238.

Adding to 117800072 its reverse (270008711), we get a palindrome (387808783).

The spelling of 117800072 in words is "one hundred seventeen million, eight hundred thousand, seventy-two".