79868550 has 48 divisors (see below), whose sum is σ = 209732112. Its totient is φ = 20044800.

The previous prime is 79868549. The next prime is 79868597. The reversal of 79868550 is 5586897.

It is a self number, because there is not a number n which added to its sum of digits gives 79868550.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13111 + ... + 18210.

It is an arithmetic number, because the mean of its divisors is an integer number (4369419).

Almost surely, 2^79868550 is an apocalyptic number.

79868550 is an abundant number, since it is smaller than the sum of its proper divisors (129863562).

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

79868550 is a wasteful number, since it uses less digits than its factorization.

79868550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31353 (or 31348 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 48.

The square root of 79868550 is about 8936.9206105907. The cubic root of 79868550 is about 430.6508082622.

The spelling of 79868550 in words is "seventy-nine million, eight hundred sixty-eight thousand, five hundred fifty".