117292028 has 12 divisors (see below), whose sum is σ = 234584112. Its totient is φ = 50268000.

The previous prime is 117292001. The next prime is 117292069. The reversal of 117292028 is 820292711.

It is a happy number.

117292028 is an admirable number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 117291985 and 117292003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2094473 + ... + 2094528.

It is an arithmetic number, because the mean of its divisors is an integer number (19548676).

Almost surely, 2^117292028 is an apocalyptic number.

It is an amenable number.

117292028 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117292028 is a wasteful number, since it uses less digits than its factorization.

117292028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4189012 (or 4189010 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 117292028 is about 10830.1444127029. The cubic root of 117292028 is about 489.5039099643.

The spelling of 117292028 in words is "one hundred seventeen million, two hundred ninety-two thousand, twenty-eight".