117172828 has 6 divisors (see below), whose sum is σ = 205052456. Its totient is φ = 58586412.

The previous prime is 117172813. The next prime is 117172849. The reversal of 117172828 is 828271711.

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, 14646600 + ... + 14646607.

Almost surely, 2^117172828 is an apocalyptic number.

It is an amenable number.

117172828 is a deficient number, since it is larger than the sum of its proper divisors (87879628).

117172828 is a wasteful number, since it uses less digits than its factorization.

117172828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29293211 (or 29293209 counting only the distinct ones).

The product of its digits is 12544, while the sum is 37.

The square root of 117172828 is about 10824.6398554409. The cubic root of 117172828 is about 489.3380315602.

The spelling of 117172828 in words is "one hundred seventeen million, one hundred seventy-two thousand, eight hundred twenty-eight".