117357728 has 12 divisors (see below), whose sum is σ = 231048090. Its totient is φ = 58678848.

The previous prime is 117357697. The next prime is 117357733. The reversal of 117357728 is 827753711.

It can be written as a sum of positive squares in only one way, i.e., 74166544 + 43191184 = 8612^2 + 6572^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1833683 + ... + 1833746.

Almost surely, 2^117357728 is an apocalyptic number.

It is an amenable number.

117357728 is a deficient number, since it is larger than the sum of its proper divisors (113690362).

117357728 is an equidigital number, since it uses as much as digits as its factorization.

117357728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3667439 (or 3667431 counting only the distinct ones).

The product of its digits is 82320, while the sum is 41.

The square root of 117357728 is about 10833.1771886183. The cubic root of 117357728 is about 489.5952898717.

The spelling of 117357728 in words is "one hundred seventeen million, three hundred fifty-seven thousand, seven hundred twenty-eight".