79701685 has 24 divisors (see below), whose sum is σ = 113102136. Its totient is φ = 53746560.

The previous prime is 79701679. The next prime is 79701691. The reversal of 79701685 is 58610797.

It is an interprime number because it is at equal distance from previous prime (79701679) and next prime (79701691).

It can be written as a sum of positive squares in 4 ways, for example, as 11242609 + 68459076 = 3353^2 + 8274^2 .

It is not a de Polignac number, because 79701685 - 2⁹ = 79701173 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12279 + ... + 17611.

It is an arithmetic number, because the mean of its divisors is an integer number (4712589).

Almost surely, 2^79701685 is an apocalyptic number.

It is an amenable number.

79701685 is a deficient number, since it is larger than the sum of its proper divisors (33400451).

79701685 is a wasteful number, since it uses less digits than its factorization.

79701685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5413 (or 5406 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 43.

The square root of 79701685 is about 8927.5800192437. The cubic root of 79701685 is about 430.3506874176.

The spelling of 79701685 in words is "seventy-nine million, seven hundred one thousand, six hundred eighty-five".