79004489 has 6 divisors (see below), whose sum is σ = 83381850. Its totient is φ = 74846016.

The previous prime is 79004473. The next prime is 79004501. The reversal of 79004489 is 98440097.

It can be written as a sum of positive squares in only one way, i.e., 75394489 + 3610000 = 8683^2 + 1900^2 .

It is not a de Polignac number, because 79004489 - 2⁴ = 79004473 is a prime.

It is a super-2 number, since 2×79004489² = 12483418564302242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79000489) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 109064 + ... + 109785.

It is an arithmetic number, because the mean of its divisors is an integer number (13896975).

Almost surely, 2^79004489 is an apocalyptic number.

It is an amenable number.

79004489 is a deficient number, since it is larger than the sum of its proper divisors (4377361).

79004489 is a wasteful number, since it uses less digits than its factorization.

79004489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218887 (or 218868 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 79004489 is about 8888.4469397077. The cubic root of 79004489 is about 429.0921697988.

The spelling of 79004489 in words is "seventy-nine million, four thousand, four hundred eighty-nine".