117891174 has 16 divisors (see below), whose sum is σ = 236021760. Its totient is φ = 39257160.

The previous prime is 117891173. The next prime is 117891197. The reversal of 117891174 is 471198711.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117891173) 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, 3222 + ... + 15689.

It is an arithmetic number, because the mean of its divisors is an integer number (14751360).

Almost surely, 2^117891174 is an apocalyptic number.

117891174 is an abundant number, since it is smaller than the sum of its proper divisors (118130586).

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

117891174 is a wasteful number, since it uses less digits than its factorization.

117891174 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19955.

The product of its digits is 14112, while the sum is 39.

The square root of 117891174 is about 10857.7702130778. The cubic root of 117891174 is about 490.3359822608.

The spelling of 117891174 in words is "one hundred seventeen million, eight hundred ninety-one thousand, one hundred seventy-four".