117549879 has 8 divisors (see below), whose sum is σ = 158198400. Its totient is φ = 77633976.

The previous prime is 117549871. The next prime is 117549881. The reversal of 117549879 is 978945711.

It is a happy number.

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

It is not a de Polignac number, because 117549879 - 2³ = 117549871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117549871) 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, 182779 + ... + 183420.

It is an arithmetic number, because the mean of its divisors is an integer number (19774800).

Almost surely, 2^117549879 is an apocalyptic number.

117549879 is a deficient number, since it is larger than the sum of its proper divisors (40648521).

117549879 is a wasteful number, since it uses less digits than its factorization.

117549879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366309.

The product of its digits is 635040, while the sum is 51.

The square root of 117549879 is about 10842.0421969295. The cubic root of 117549879 is about 489.8623506178.

The spelling of 117549879 in words is "one hundred seventeen million, five hundred forty-nine thousand, eight hundred seventy-nine".