79223969 has 8 divisors (see below), whose sum is σ = 89406720. Its totient is φ = 69538000.

The previous prime is 79223909. The next prime is 79223981. The reversal of 79223969 is 96932297.

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 79223969 - 2²⁰ = 78175393 is a prime.

It is a super-2 number, since 2×79223969² = 12552874528225922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79223909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123857 + ... + 124494.

It is an arithmetic number, because the mean of its divisors is an integer number (11175840).

Almost surely, 2^79223969 is an apocalyptic number.

It is an amenable number.

79223969 is a deficient number, since it is larger than the sum of its proper divisors (10182751).

79223969 is a wasteful number, since it uses less digits than its factorization.

79223969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248391.

The product of its digits is 367416, while the sum is 47.

The square root of 79223969 is about 8900.7847406844. The cubic root of 79223969 is about 429.4891517708.

The spelling of 79223969 in words is "seventy-nine million, two hundred twenty-three thousand, nine hundred sixty-nine".