79875579 has 8 divisors (see below), whose sum is σ = 121715200. Its totient is φ = 45643176.

The previous prime is 79875577. The next prime is 79875581. The reversal of 79875579 is 97557897.

It is an interprime number because it is at equal distance from previous prime (79875577) and next prime (79875581).

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

It is not a de Polignac number, because 79875579 - 2¹ = 79875577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79875577) 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, 1901779 + ... + 1901820.

It is an arithmetic number, because the mean of its divisors is an integer number (15214400).

Almost surely, 2^79875579 is an apocalyptic number.

79875579 is a deficient number, since it is larger than the sum of its proper divisors (41839621).

79875579 is a wasteful number, since it uses less digits than its factorization.

79875579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3803609.

The product of its digits is 5556600, while the sum is 57.

The square root of 79875579 is about 8937.3138582015. The cubic root of 79875579 is about 430.6634413355.

The spelling of 79875579 in words is "seventy-nine million, eight hundred seventy-five thousand, five hundred seventy-nine".