79499660 has 24 divisors (see below), whose sum is σ = 168156240. Its totient is φ = 31569984.

The previous prime is 79499659. The next prime is 79499663. The reversal of 79499660 is 6699497.

It is a junction number, because it is equal to n+sod(n) for n = 79499599 and 79499608.

It is not an unprimeable number, because it can be changed into a prime (79499663) 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, 11519 + ... + 17078.

It is an arithmetic number, because the mean of its divisors is an integer number (7006510).

Almost surely, 2^79499660 is an apocalyptic number.

It is an amenable number.

79499660 is an abundant number, since it is smaller than the sum of its proper divisors (88656580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79499660 is a wasteful number, since it uses less digits than its factorization.

79499660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28745 (or 28743 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 50.

The square root of 79499660 is about 8916.2581837899. The cubic root of 79499660 is about 429.9867672149.

The spelling of 79499660 in words is "seventy-nine million, four hundred ninety-nine thousand, six hundred sixty".