117578828 has 6 divisors (see below), whose sum is σ = 205762956. Its totient is φ = 58789412.

The previous prime is 117578827. The next prime is 117578831. The reversal of 117578828 is 828875711.

It is not an unprimeable number, because it can be changed into a prime (117578827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14697350 + ... + 14697357.

It is an arithmetic number, because the mean of its divisors is an integer number (34293826).

Almost surely, 2^117578828 is an apocalyptic number.

It is an amenable number.

117578828 is a deficient number, since it is larger than the sum of its proper divisors (88184128).

117578828 is a wasteful number, since it uses less digits than its factorization.

117578828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29394711 (or 29394709 counting only the distinct ones).

The product of its digits is 250880, while the sum is 47.

The square root of 117578828 is about 10843.3771492096. The cubic root of 117578828 is about 489.9025601055.

The spelling of 117578828 in words is "one hundred seventeen million, five hundred seventy-eight thousand, eight hundred twenty-eight".