79679487 has 4 divisors (see below), whose sum is σ = 106239320. Its totient is φ = 53119656.

The previous prime is 79679477. The next prime is 79679489. The reversal of 79679487 is 78497697.

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

It is not a de Polignac number, because 79679487 - 2⁶ = 79679423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79679489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13279912 + ... + 13279917.

It is an arithmetic number, because the mean of its divisors is an integer number (26559830).

Almost surely, 2^79679487 is an apocalyptic number.

79679487 is a deficient number, since it is larger than the sum of its proper divisors (26559833).

79679487 is a wasteful number, since it uses less digits than its factorization.

79679487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26559832.

The product of its digits is 5334336, while the sum is 57.

The square root of 79679487 is about 8926.3367066227. The cubic root of 79679487 is about 430.3107308739.

The spelling of 79679487 in words is "seventy-nine million, six hundred seventy-nine thousand, four hundred eighty-seven".