79849799 has 16 divisors (see below), whose sum is σ = 89462880. Its totient is φ = 70824960.

The previous prime is 79849787. The next prime is 79849817. The reversal of 79849799 is 99794897.

It is a cyclic number.

It is not a de Polignac number, because 79849799 - 2⁸ = 79849543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79849709) 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, 74729 + ... + 75789.

It is an arithmetic number, because the mean of its divisors is an integer number (5591430).

Almost surely, 2^79849799 is an apocalyptic number.

79849799 is a deficient number, since it is larger than the sum of its proper divisors (9613081).

79849799 is a wasteful number, since it uses less digits than its factorization.

79849799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330.

The product of its digits is 10287648, while the sum is 62.

The square root of 79849799 is about 8935.8714740086. The cubic root of 79849799 is about 430.6171038595.

The spelling of 79849799 in words is "seventy-nine million, eight hundred forty-nine thousand, seven hundred ninety-nine".