79680793 has 4 divisors (see below), whose sum is σ = 79754788. Its totient is φ = 79606800.

The previous prime is 79680781. The next prime is 79680841. The reversal of 79680793 is 39708697.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39708697 = 7 ⋅5672671.

It can be written as a sum of positive squares in 2 ways, for example, as 79352464 + 328329 = 8908^2 + 573^2 .

It is a cyclic number.

It is not a de Polignac number, because 79680793 - 2¹³ = 79672601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79680493) 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, 35358 + ... + 37543.

It is an arithmetic number, because the mean of its divisors is an integer number (19938697).

Almost surely, 2^79680793 is an apocalyptic number.

It is an amenable number.

79680793 is a deficient number, since it is larger than the sum of its proper divisors (73995).

79680793 is a wasteful number, since it uses less digits than its factorization.

79680793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73994.

The product of its (nonzero) digits is 571536, while the sum is 49.

The square root of 79680793 is about 8926.4098606327. The cubic root of 79680793 is about 430.3130818878.

The spelling of 79680793 in words is "seventy-nine million, six hundred eighty thousand, seven hundred ninety-three".