79864004 has 48 divisors (see below), whose sum is σ = 162207360. Its totient is φ = 34045440.

The previous prime is 79863991. The next prime is 79864007. The reversal of 79864004 is 40046897.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (79864007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52892 + ... + 54380.

It is an arithmetic number, because the mean of its divisors is an integer number (3379320).

Almost surely, 2^79864004 is an apocalyptic number.

It is an amenable number.

79864004 is an abundant number, since it is smaller than the sum of its proper divisors (82343356).

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

79864004 is a wasteful number, since it uses less digits than its factorization.

79864004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1580 (or 1578 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 79864004 is about 8936.6662688052. Note that the first 3 decimals coincide. The cubic root of 79864004 is about 430.6426374377.

The spelling of 79864004 in words is "seventy-nine million, eight hundred sixty-four thousand, four".