79669983 has 8 divisors (see below), whose sum is σ = 111817600. Its totient is φ = 50317848.

The previous prime is 79669981. The next prime is 79669987. The reversal of 79669983 is 38996697.

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

It is not a de Polignac number, because 79669983 - 2¹ = 79669981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57), and also a Moran number because the ratio is a prime number: 1397719 = 79669983 / (7 + 9 + 6 + 6 + 9 + 9 + 8 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79669981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 698803 + ... + 698916.

It is an arithmetic number, because the mean of its divisors is an integer number (13977200).

Almost surely, 2^79669983 is an apocalyptic number.

79669983 is a deficient number, since it is larger than the sum of its proper divisors (32147617).

79669983 is a wasteful number, since it uses less digits than its factorization.

79669983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397741.

The product of its digits is 4408992, while the sum is 57.

The square root of 79669983 is about 8925.8043335041. The cubic root of 79669983 is about 430.2936213436.

The spelling of 79669983 in words is "seventy-nine million, six hundred sixty-nine thousand, nine hundred eighty-three".