117661208 has 16 divisors (see below), whose sum is σ = 252131280. Its totient is φ = 50426208.

The previous prime is 117661189. The next prime is 117661211. The reversal of 117661208 is 802166711.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1050491 + ... + 1050602.

It is an arithmetic number, because the mean of its divisors is an integer number (15758205).

Almost surely, 2^117661208 is an apocalyptic number.

It is an amenable number.

117661208 is an abundant number, since it is smaller than the sum of its proper divisors (134470072).

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

117661208 is a wasteful number, since it uses less digits than its factorization.

117661208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2101106 (or 2101102 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 117661208 is about 10847.1751161305. The cubic root of 117661208 is about 490.0169479075.

The spelling of 117661208 in words is "one hundred seventeen million, six hundred sixty-one thousand, two hundred eight".