79286868 has 18 divisors (see below), whose sum is σ = 200419674. Its totient is φ = 26428944.

The previous prime is 79286839. The next prime is 79286897. The reversal of 79286868 is 86868297.

It is an interprime number because it is at equal distance from previous prime (79286839) and next prime (79286897).

It can be written as a sum of positive squares in only one way, i.e., 76003524 + 3283344 = 8718^2 + 1812^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1101171 + ... + 1101242.

Almost surely, 2^79286868 is an apocalyptic number.

It is an amenable number.

79286868 is an abundant number, since it is smaller than the sum of its proper divisors (121132806).

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

79286868 is a wasteful number, since it uses less digits than its factorization.

79286868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2202423 (or 2202418 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The square root of 79286868 is about 8904.3173797883. The cubic root of 79286868 is about 429.6027844352.

The spelling of 79286868 in words is "seventy-nine million, two hundred eighty-six thousand, eight hundred sixty-eight".