117956787 has 8 divisors (see below), whose sum is σ = 169373904. Its totient is φ = 72588768.

The previous prime is 117956779. The next prime is 117956801. The reversal of 117956787 is 787659711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 117956787 - 2³ = 117956779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117956087) 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, 1512228 + ... + 1512305.

It is an arithmetic number, because the mean of its divisors is an integer number (21171738).

Almost surely, 2^117956787 is an apocalyptic number.

117956787 is a deficient number, since it is larger than the sum of its proper divisors (51417117).

117956787 is a wasteful number, since it uses less digits than its factorization.

117956787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3024549.

The product of its digits is 740880, while the sum is 51.

The square root of 117956787 is about 10860.7912695162. The cubic root of 117956787 is about 490.4269318120.

The spelling of 117956787 in words is "one hundred seventeen million, nine hundred fifty-six thousand, seven hundred eighty-seven".