117891474 has 16 divisors (see below), whose sum is σ = 236225280. Its totient is φ = 39223440.

The previous prime is 117891469. The next prime is 117891493. The reversal of 117891474 is 474198711.

It is a super-3 number, since 3×117891474³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14914 + ... + 21405.

It is an arithmetic number, because the mean of its divisors is an integer number (14764080).

Almost surely, 2^117891474 is an apocalyptic number.

117891474 is an abundant number, since it is smaller than the sum of its proper divisors (118333806).

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

117891474 is a wasteful number, since it uses less digits than its factorization.

117891474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36865.

The product of its digits is 56448, while the sum is 42.

The square root of 117891474 is about 10857.7840280602. The cubic root of 117891474 is about 490.3363981830.

The spelling of 117891474 in words is "one hundred seventeen million, eight hundred ninety-one thousand, four hundred seventy-four".