79849899 has 6 divisors (see below), whose sum is σ = 115338756. Its totient is φ = 53233260.

The previous prime is 79849897. The next prime is 79849907. The reversal of 79849899 is 99894897.

It is not a de Polignac number, because 79849899 - 2¹ = 79849897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79849897) 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 5 ways as a sum of consecutive naturals, for example, 4436097 + ... + 4436114.

It is an arithmetic number, because the mean of its divisors is an integer number (19223126).

Almost surely, 2^79849899 is an apocalyptic number.

79849899 is a deficient number, since it is larger than the sum of its proper divisors (35488857).

79849899 is a wasteful number, since it uses less digits than its factorization.

79849899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8872217 (or 8872214 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 63.

The square root of 79849899 is about 8935.8770694320. The cubic root of 79849899 is about 430.6172836207.

The spelling of 79849899 in words is "seventy-nine million, eight hundred forty-nine thousand, eight hundred ninety-nine".