79720367 has 4 divisors (see below), whose sum is σ = 79873320. Its totient is φ = 79567416.

The previous prime is 79720349. The next prime is 79720373. The reversal of 79720367 is 76302797.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 79720367 - 2²⁴ = 62943151 is a prime.

It is a super-2 number, since 2×79720367² = 12710673829229378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79720337) 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, 75692 + ... + 76737.

It is an arithmetic number, because the mean of its divisors is an integer number (19968330).

Almost surely, 2^79720367 is an apocalyptic number.

79720367 is a deficient number, since it is larger than the sum of its proper divisors (152953).

79720367 is a wasteful number, since it uses less digits than its factorization.

79720367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152952.

The product of its (nonzero) digits is 111132, while the sum is 41.

The square root of 79720367 is about 8928.6262661173. The cubic root of 79720367 is about 430.3843093895.

The spelling of 79720367 in words is "seventy-nine million, seven hundred twenty thousand, three hundred sixty-seven".