79996669 has 8 divisors (see below), whose sum is σ = 84348000. Its totient is φ = 75659472.

The previous prime is 79996649. The next prime is 79996673. The reversal of 79996669 is 96669997.

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 79996669 - 2⁷ = 79996541 is a prime.

It is a super-2 number, since 2×79996669² = 12798934102191122, 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 (79996619) 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, 9327 + ... + 15715.

It is an arithmetic number, because the mean of its divisors is an integer number (10543500).

Almost surely, 2^79996669 is an apocalyptic number.

It is an amenable number.

79996669 is a deficient number, since it is larger than the sum of its proper divisors (4351331).

79996669 is a wasteful number, since it uses less digits than its factorization.

79996669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7067.

The product of its digits is 9920232, while the sum is 61.

The square root of 79996669 is about 8944.0856995000. The cubic root of 79996669 is about 430.8809575717.

The spelling of 79996669 in words is "seventy-nine million, nine hundred ninety-six thousand, six hundred sixty-nine".