117637388 has 12 divisors (see below), whose sum is σ = 224580552. Its totient is φ = 53471520.

The previous prime is 117637363. The next prime is 117637397. The reversal of 117637388 is 883736711.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 2673577 = 117637388 / (1 + 1 + 7 + 6 + 3 + 7 + 3 + 8 + 8).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1336745 + ... + 1336832.

It is an arithmetic number, because the mean of its divisors is an integer number (18715046).

Almost surely, 2^117637388 is an apocalyptic number.

It is an amenable number.

117637388 is a deficient number, since it is larger than the sum of its proper divisors (106943164).

117637388 is a wasteful number, since it uses less digits than its factorization.

117637388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2673592 (or 2673590 counting only the distinct ones).

The product of its digits is 169344, while the sum is 44.

The square root of 117637388 is about 10846.0770788336. The cubic root of 117637388 is about 489.9838784089.

The spelling of 117637388 in words is "one hundred seventeen million, six hundred thirty-seven thousand, three hundred eighty-eight".