117742886 has 8 divisors (see below), whose sum is σ = 185909880. Its totient is φ = 55772928.

The previous prime is 117742861. The next prime is 117742903. The reversal of 117742886 is 688247711.

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

It is a Curzon 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, 1549211 + ... + 1549286.

It is an arithmetic number, because the mean of its divisors is an integer number (23238735).

Almost surely, 2^117742886 is an apocalyptic number.

117742886 is a deficient number, since it is larger than the sum of its proper divisors (68166994).

117742886 is a wasteful number, since it uses less digits than its factorization.

117742886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3098518.

The product of its digits is 150528, while the sum is 44.

The square root of 117742886 is about 10850.9394063371. The cubic root of 117742886 is about 490.1303082560.

The spelling of 117742886 in words is "one hundred seventeen million, seven hundred forty-two thousand, eight hundred eighty-six".