79816130 has 16 divisors (see below), whose sum is σ = 144164664. Its totient is φ = 31816320.

The previous prime is 79816129. The next prime is 79816133. The reversal of 79816130 is 3161897.

It can be written as a sum of positive squares in 4 ways, for example, as 77246521 + 2569609 = 8789^2 + 1603^2 .

It is a super-2 number, since 2×79816130² = 12741229216353800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (79816133) 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, 10691 + ... + 16550.

Almost surely, 2^79816130 is an apocalyptic number.

79816130 is a deficient number, since it is larger than the sum of its proper divisors (64348534).

79816130 is a wasteful number, since it uses less digits than its factorization.

79816130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27541.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 79816130 is about 8933.9873516812. The cubic root of 79816130 is about 430.5565715196.

The spelling of 79816130 in words is "seventy-nine million, eight hundred sixteen thousand, one hundred thirty".