117953988 has 24 divisors (see below), whose sum is σ = 281627808. Its totient is φ = 38403456.

The previous prime is 117953981. The next prime is 117953989. The reversal of 117953988 is 889359711.

It is a super-3 number, since 3×117953988³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 117953988.

It is not an unprimeable number, because it can be changed into a prime (117953981) 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, 113781 + ... + 114812.

It is an arithmetic number, because the mean of its divisors is an integer number (11734492).

Almost surely, 2^117953988 is an apocalyptic number.

It is an amenable number.

117953988 is an abundant number, since it is smaller than the sum of its proper divisors (163673820).

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

117953988 is a wasteful number, since it uses less digits than its factorization.

117953988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228643 (or 228641 counting only the distinct ones).

The product of its digits is 544320, while the sum is 51.

The square root of 117953988 is about 10860.6624107372. The cubic root of 117953988 is about 490.4230526630.

The spelling of 117953988 in words is "one hundred seventeen million, nine hundred fifty-three thousand, nine hundred eighty-eight".