117645328 has 10 divisors (see below), whose sum is σ = 227937854. Its totient is φ = 58822656.

The previous prime is 117645313. The next prime is 117645337. The reversal of 117645328 is 823546711.

It can be written as a sum of positive squares in only one way, i.e., 68757264 + 48888064 = 8292^2 + 6992^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3676401 + ... + 3676432.

Almost surely, 2^117645328 is an apocalyptic number.

It is an amenable number.

117645328 is a deficient number, since it is larger than the sum of its proper divisors (110292526).

117645328 is an equidigital number, since it uses as much as digits as its factorization.

117645328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7352841 (or 7352835 counting only the distinct ones).

The product of its digits is 40320, while the sum is 37.

The square root of 117645328 is about 10846.4431036170. The cubic root of 117645328 is about 489.9949020711.

The spelling of 117645328 in words is "one hundred seventeen million, six hundred forty-five thousand, three hundred twenty-eight".