79584889 has 4 divisors (see below), whose sum is σ = 79606900. Its totient is φ = 79562880.

The previous prime is 79584881. The next prime is 79584893. The reversal of 79584889 is 98848597.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 60295225 + 19289664 = 7765^2 + 4392^2 .

It is a cyclic number.

It is not a de Polignac number, because 79584889 - 2³ = 79584881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79584881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4164 + ... + 13285.

It is an arithmetic number, because the mean of its divisors is an integer number (19901725).

Almost surely, 2^79584889 is an apocalyptic number.

It is an amenable number.

79584889 is a deficient number, since it is larger than the sum of its proper divisors (22011).

79584889 is a wasteful number, since it uses less digits than its factorization.

79584889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22010.

The product of its digits is 5806080, while the sum is 58.

The square root of 79584889 is about 8921.0363187244. The cubic root of 79584889 is about 430.1403706133.

The spelling of 79584889 in words is "seventy-nine million, five hundred eighty-four thousand, eight hundred eighty-nine".