117872628 has 24 divisors (see below), whose sum is σ = 291215232. Its totient is φ = 36979584.

The previous prime is 117872609. The next prime is 117872647. The reversal of 117872628 is 826278711.

It is an interprime number because it is at equal distance from previous prime (117872609) and next prime (117872647).

It is a self number, because there is not a number n which added to its sum of digits gives 117872628.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288700 + ... + 289107.

It is an arithmetic number, because the mean of its divisors is an integer number (12133968).

Almost surely, 2^117872628 is an apocalyptic number.

It is an amenable number.

117872628 is an abundant number, since it is smaller than the sum of its proper divisors (173342604).

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

117872628 is a wasteful number, since it uses less digits than its factorization.

117872628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577831 (or 577829 counting only the distinct ones).

The product of its digits is 75264, while the sum is 42.

The square root of 117872628 is about 10856.9161367305. The cubic root of 117872628 is about 490.3102685801.

The spelling of 117872628 in words is "one hundred seventeen million, eight hundred seventy-two thousand, six hundred twenty-eight".