117711728 has 40 divisors (see below), whose sum is σ = 234413568. Its totient is φ = 57238272.

The previous prime is 117711719. The next prime is 117711749. The reversal of 117711728 is 827117711.

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 7 ways as a sum of consecutive naturals, for example, 107150 + ... + 108242.

Almost surely, 2^117711728 is an apocalyptic number.

It is an amenable number.

117711728 is a deficient number, since it is larger than the sum of its proper divisors (116701840).

117711728 is a wasteful number, since it uses less digits than its factorization.

117711728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281 (or 1275 counting only the distinct ones).

The product of its digits is 5488, while the sum is 35.

The square root of 117711728 is about 10849.5035831138. The cubic root of 117711728 is about 490.0870704635.

The spelling of 117711728 in words is "one hundred seventeen million, seven hundred eleven thousand, seven hundred twenty-eight".