117978760 has 32 divisors (see below), whose sum is σ = 269956800. Its totient is φ = 46390720.

The previous prime is 117978743. The next prime is 117978761. The reversal of 117978760 is 67879711.

It is a super-2 number, since 2×117978760² = 27837975622275200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 117978760.

It is not an unprimeable number, because it can be changed into a prime (117978761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22636 + ... + 27355.

It is an arithmetic number, because the mean of its divisors is an integer number (8436150).

Almost surely, 2^117978760 is an apocalyptic number.

117978760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117978760 is an abundant number, since it is smaller than the sum of its proper divisors (151978040).

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

117978760 is a wasteful number, since it uses less digits than its factorization.

117978760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50061 (or 50057 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 46.

The square root of 117978760 is about 10861.8027969578. The cubic root of 117978760 is about 490.4573821777.

The spelling of 117978760 in words is "one hundred seventeen million, nine hundred seventy-eight thousand, seven hundred sixty".