117639736 has 16 divisors (see below), whose sum is σ = 220802400. Its totient is φ = 58759104.

The previous prime is 117639679. The next prime is 117639737. The reversal of 117639736 is 637936711.

It is a super-2 number, since 2×117639736² = 27678214972299392, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 117639692 and 117639701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117639737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1236 + ... + 15388.

It is an arithmetic number, because the mean of its divisors is an integer number (13800150).

Almost surely, 2^117639736 is an apocalyptic number.

It is an amenable number.

117639736 is a deficient number, since it is larger than the sum of its proper divisors (103162664).

117639736 is a wasteful number, since it uses less digits than its factorization.

117639736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15198 (or 15194 counting only the distinct ones).

The product of its digits is 142884, while the sum is 43.

The square root of 117639736 is about 10846.1853201944. The cubic root of 117639736 is about 489.9871383546.

The spelling of 117639736 in words is "one hundred seventeen million, six hundred thirty-nine thousand, seven hundred thirty-six".