117966728 has 32 divisors (see below), whose sum is σ = 242676000. Its totient is φ = 53314560.

The previous prime is 117966707. The next prime is 117966731. The reversal of 117966728 is 827669711.

It is a super-2 number, since 2×117966728² = 27832297830051968, which contains 22 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, 12008 + ... + 19496.

It is an arithmetic number, because the mean of its divisors is an integer number (7583625).

Almost surely, 2^117966728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117966728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121338000).

117966728 is an abundant number, since it is smaller than the sum of its proper divisors (124709272).

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

117966728 is a wasteful number, since it uses less digits than its factorization.

117966728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7685 (or 7681 counting only the distinct ones).

The product of its digits is 254016, while the sum is 47.

The square root of 117966728 is about 10861.2489152951. The cubic root of 117966728 is about 490.4407086006.

The spelling of 117966728 in words is "one hundred seventeen million, nine hundred sixty-six thousand, seven hundred twenty-eight".