117648928 has 12 divisors (see below), whose sum is σ = 231621390. Its totient is φ = 58824448.

The previous prime is 117648919. The next prime is 117648929. The reversal of 117648928 is 829846711.

It can be written as a sum of positive squares in only one way, i.e., 81504784 + 36144144 = 9028^2 + 6012^2 .

It is not an unprimeable number, because it can be changed into a prime (117648929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1838233 + ... + 1838296.

Almost surely, 2^117648928 is an apocalyptic number.

It is an amenable number.

117648928 is a deficient number, since it is larger than the sum of its proper divisors (113972462).

117648928 is an equidigital number, since it uses as much as digits as its factorization.

117648928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3676539 (or 3676531 counting only the distinct ones).

The product of its digits is 193536, while the sum is 46.

The square root of 117648928 is about 10846.6090553684. The cubic root of 117648928 is about 489.9999000416. Note that the first 4 decimals are identical.

It can be divided in two parts, 11764892 and 8, that added together give a square (11764900 = 3430²).

The spelling of 117648928 in words is "one hundred seventeen million, six hundred forty-eight thousand, nine hundred twenty-eight".