79829997 has 16 divisors (see below), whose sum is σ = 114901248. Its totient is φ = 49008960.

The previous prime is 79829921. The next prime is 79829999. The reversal of 79829997 is 79992897.

It is a happy number.

It is not a de Polignac number, because 79829997 - 2⁸ = 79829741 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79829997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79829999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15847 + ... + 20267.

It is an arithmetic number, because the mean of its divisors is an integer number (7181328).

Almost surely, 2^79829997 is an apocalyptic number.

It is an amenable number.

79829997 is a deficient number, since it is larger than the sum of its proper divisors (35071251).

79829997 is a wasteful number, since it uses less digits than its factorization.

79829997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4900.

The product of its digits is 5143824, while the sum is 60.

The square root of 79829997 is about 8934.7633992177. The cubic root of 79829997 is about 430.5815045844.

The spelling of 79829997 in words is "seventy-nine million, eight hundred twenty-nine thousand, nine hundred ninety-seven".