117828688 has 10 divisors (see below), whose sum is σ = 228293114. Its totient is φ = 58914336.

The previous prime is 117828677. The next prime is 117828703. The reversal of 117828688 is 886828711.

It can be written as a sum of positive squares in only one way, i.e., 94711824 + 23116864 = 9732^2 + 4808^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3682131 + ... + 3682162.

Almost surely, 2^117828688 is an apocalyptic number.

It is an amenable number.

117828688 is a deficient number, since it is larger than the sum of its proper divisors (110464426).

117828688 is an equidigital number, since it uses as much as digits as its factorization.

117828688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7364301 (or 7364295 counting only the distinct ones).

The product of its digits is 344064, while the sum is 49.

The square root of 117828688 is about 10854.8923532203. The cubic root of 117828688 is about 490.2493358282.

The spelling of 117828688 in words is "one hundred seventeen million, eight hundred twenty-eight thousand, six hundred eighty-eight".