79913859 has 8 divisors (see below), whose sum is σ = 106700112. Its totient is φ = 53201760.

The previous prime is 79913857. The next prime is 79913863. The reversal of 79913859 is 95831997.

It is a happy number.

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

It is not a de Polignac number, because 79913859 - 2¹ = 79913857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79913851) 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, 15972 + ... + 20369.

It is an arithmetic number, because the mean of its divisors is an integer number (13337514).

Almost surely, 2^79913859 is an apocalyptic number.

79913859 is a deficient number, since it is larger than the sum of its proper divisors (26786253).

79913859 is a wasteful number, since it uses less digits than its factorization.

79913859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37077.

The product of its digits is 612360, while the sum is 51.

The square root of 79913859 is about 8939.4551847414. The cubic root of 79913859 is about 430.7322281656.

The spelling of 79913859 in words is "seventy-nine million, nine hundred thirteen thousand, eight hundred fifty-nine".