79879516 has 6 divisors (see below), whose sum is σ = 139789160. Its totient is φ = 39939756.

The previous prime is 79879493. The next prime is 79879519. The reversal of 79879516 is 61597897.

It is a happy number.

79879516 is nontrivially palindromic in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79879519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9984936 + ... + 9984943.

Almost surely, 2^79879516 is an apocalyptic number.

It is an amenable number.

79879516 is a deficient number, since it is larger than the sum of its proper divisors (59909644).

79879516 is a wasteful number, since it uses less digits than its factorization.

79879516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19969883 (or 19969881 counting only the distinct ones).

The product of its digits is 952560, while the sum is 52.

The square root of 79879516 is about 8937.5341118230. The cubic root of 79879516 is about 430.6705168987.

The spelling of 79879516 in words is "seventy-nine million, eight hundred seventy-nine thousand, five hundred sixteen".