117564 has 24 divisors (see below), whose sum is σ = 279888. Its totient is φ = 38400.

The previous prime is 117563. The next prime is 117571. The reversal of 117564 is 465711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117563) 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, 1114 + ... + 1214.

It is an arithmetic number, because the mean of its divisors is an integer number (11662).

2¹¹⁷⁵⁶⁴ is an apocalyptic number.

It is an amenable number.

117564 is an abundant number, since it is smaller than the sum of its proper divisors (162324).

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

117564 is a wasteful number, since it uses less digits than its factorization.

117564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205 (or 203 counting only the distinct ones).

The product of its digits is 840, while the sum is 24.

The square root of 117564 is about 342.8760709061. The cubic root of 117564 is about 48.9881965183.

The spelling of 117564 in words is "one hundred seventeen thousand, five hundred sixty-four".