79899575 has 48 divisors (see below), whose sum is σ = 121492224. Its totient is φ = 50880000.

The previous prime is 79899571. The next prime is 79899583. The reversal of 79899575 is 57599897.

It is not a de Polignac number, because 79899575 - 2² = 79899571 is a prime.

Its product of digits (7144200) is a multiple of the sum of its prime factors (392).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79899571) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 318200 + ... + 318450.

It is an arithmetic number, because the mean of its divisors is an integer number (2531088).

Almost surely, 2^79899575 is an apocalyptic number.

79899575 is a deficient number, since it is larger than the sum of its proper divisors (41592649).

79899575 is a wasteful number, since it uses less digits than its factorization.

79899575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392 (or 387 counting only the distinct ones).

The product of its digits is 7144200, while the sum is 59.

The square root of 79899575 is about 8938.6562189179. The cubic root of 79899575 is about 430.7065632566.

The spelling of 79899575 in words is "seventy-nine million, eight hundred ninety-nine thousand, five hundred seventy-five".