117709520 has 30 divisors (see below), whose sum is σ = 273900438. Its totient is φ = 47044992.

The previous prime is 117709519. The next prime is 117709577. The reversal of 117709520 is 25907711.

It can be written as a sum of positive squares in 3 ways, for example, as 7795264 + 109914256 = 2792^2 + 10484^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 96434 + ... + 97646.

Almost surely, 2^117709520 is an apocalyptic number.

117709520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117709520 is an abundant number, since it is smaller than the sum of its proper divisors (156190918).

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

117709520 is an frugal number, since it uses more digits than its factorization.

117709520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2439 (or 1220 counting only the distinct ones).

The product of its (nonzero) digits is 4410, while the sum is 32.

The square root of 117709520 is about 10849.4018268290. The cubic root of 117709520 is about 490.0840061441.

The spelling of 117709520 in words is "one hundred seventeen million, seven hundred nine thousand, five hundred twenty".