79730823 has 8 divisors (see below), whose sum is σ = 106372336. Its totient is φ = 53121600.

The previous prime is 79730813. The next prime is 79730837. The reversal of 79730823 is 32803797.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 79730823 - 2¹³ = 79722631 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 (79730813) 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, 1558 + ... + 12723.

It is an arithmetic number, because the mean of its divisors is an integer number (13296542).

Almost surely, 2^79730823 is an apocalyptic number.

79730823 is a deficient number, since it is larger than the sum of its proper divisors (26641513).

79730823 is a wasteful number, since it uses less digits than its factorization.

79730823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16145.

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 79730823 is about 8929.2117793230. The cubic root of 79730823 is about 430.4031247470.

The spelling of 79730823 in words is "seventy-nine million, seven hundred thirty thousand, eight hundred twenty-three".