79985589 has 8 divisors (see below), whose sum is σ = 108108672. Its totient is φ = 52593120.

The previous prime is 79985539. The next prime is 79985597. The reversal of 79985589 is 98558997.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 79985589 - 2⁸ = 79985333 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79985539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182397 + ... + 182834.

It is an arithmetic number, because the mean of its divisors is an integer number (13513584).

Almost surely, 2^79985589 is an apocalyptic number.

It is an amenable number.

79985589 is a deficient number, since it is larger than the sum of its proper divisors (28123083).

79985589 is a wasteful number, since it uses less digits than its factorization.

79985589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365307.

The product of its digits is 8164800, while the sum is 60.

The square root of 79985589 is about 8943.4662743256. The cubic root of 79985589 is about 430.8610634874.

The spelling of 79985589 in words is "seventy-nine million, nine hundred eighty-five thousand, five hundred eighty-nine".