79872004 has 6 divisors (see below), whose sum is σ = 139776014. Its totient is φ = 39936000.

The previous prime is 79871929. The next prime is 79872019. The reversal of 79872004 is 40027897.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 40934404 + 38937600 = 6398^2 + 6240^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9983997 + ... + 9984004.

Almost surely, 2^79872004 is an apocalyptic number.

It is an amenable number.

79872004 is a deficient number, since it is larger than the sum of its proper divisors (59904010).

79872004 is a wasteful number, since it uses less digits than its factorization.

79872004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19968005 (or 19968003 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 79872004 is about 8937.1138517980. The cubic root of 79872004 is about 430.6570161561.

The spelling of 79872004 in words is "seventy-nine million, eight hundred seventy-two thousand, four".