117959787 has 64 divisors (see below), whose sum is σ = 205701120. Its totient is φ = 66009600.

The previous prime is 117959783. The next prime is 117959827. The reversal of 117959787 is 787959711.

It is not a de Polignac number, because 117959787 - 2² = 117959783 is a prime.

It is a super-2 number, since 2×117959787² = 27829022698170738, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (117959783) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 307798 + ... + 308180.

It is an arithmetic number, because the mean of its divisors is an integer number (3214080).

Almost surely, 2^117959787 is an apocalyptic number.

117959787 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

117959787 is a deficient number, since it is larger than the sum of its proper divisors (87741333).

117959787 is a wasteful number, since it uses less digits than its factorization.

117959787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481 (or 475 counting only the distinct ones).

The product of its digits is 1111320, while the sum is 54.

The square root of 117959787 is about 10860.9293801221. The cubic root of 117959787 is about 490.4310894597.

The spelling of 117959787 in words is "one hundred seventeen million, nine hundred fifty-nine thousand, seven hundred eighty-seven".