79913785 has 16 divisors (see below), whose sum is σ = 110301696. Its totient is φ = 54445248.

The previous prime is 79913783. The next prime is 79913819. The reversal of 79913785 is 58731997.

It is a cyclic number.

It is not a de Polignac number, because 79913785 - 2¹ = 79913783 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79913783) 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 15 ways as a sum of consecutive naturals, for example, 1777 + ... + 12766.

It is an arithmetic number, because the mean of its divisors is an integer number (6893856).

Almost surely, 2^79913785 is an apocalyptic number.

It is an amenable number.

79913785 is a deficient number, since it is larger than the sum of its proper divisors (30387911).

79913785 is a wasteful number, since it uses less digits than its factorization.

79913785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14712.

The product of its digits is 476280, while the sum is 49.

The square root of 79913785 is about 8939.4510457858. The cubic root of 79913785 is about 430.7320952133.

The spelling of 79913785 in words is "seventy-nine million, nine hundred thirteen thousand, seven hundred eighty-five".