79099900 has 36 divisors (see below), whose sum is σ = 187253640. Its totient is φ = 28763200.

The previous prime is 79099873. The next prime is 79099901. The reversal of 79099900 is 999097.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79099901) 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 11 ways as a sum of consecutive naturals, for example, 34855 + ... + 37054.

It is an arithmetic number, because the mean of its divisors is an integer number (5201490).

Almost surely, 2^79099900 is an apocalyptic number.

It is an amenable number.

79099900 is an abundant number, since it is smaller than the sum of its proper divisors (108153740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79099900 is a wasteful number, since it uses less digits than its factorization.

79099900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71934 (or 71927 counting only the distinct ones).

The product of its (nonzero) digits is 45927, while the sum is 43.

The square root of 79099900 is about 8893.8124558594. The cubic root of 79099900 is about 429.2648335884.

The spelling of 79099900 in words is "seventy-nine million, ninety-nine thousand, nine hundred".