79966223 has 8 divisors (see below), whose sum is σ = 82195392. Its totient is φ = 77759136.

The previous prime is 79966207. The next prime is 79966261. The reversal of 79966223 is 32266997.

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

It is a cyclic number.

It is not a de Polignac number, because 79966223 - 2⁴ = 79966207 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 (79966273) 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, 1961 + ... + 12797.

It is an arithmetic number, because the mean of its divisors is an integer number (10274424).

Almost surely, 2^79966223 is an apocalyptic number.

79966223 is a deficient number, since it is larger than the sum of its proper divisors (2229169).

79966223 is a wasteful number, since it uses less digits than its factorization.

79966223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11041.

The product of its digits is 244944, while the sum is 44.

The square root of 79966223 is about 8942.3835189506. The cubic root of 79966223 is about 430.8262875193.

The spelling of 79966223 in words is "seventy-nine million, nine hundred sixty-six thousand, two hundred twenty-three".