85872913 has 8 divisors (see below), whose sum is σ = 103305920. Its totient is φ = 69731280.

The previous prime is 85872889. The next prime is 85872931. The reversal of 85872913 is 31927858.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85872913 - 2⁹ = 85872401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85872913.

It is not an unprimeable number, because it can be changed into a prime (85872953) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 322698 + ... + 322963.

It is an arithmetic number, because the mean of its divisors is an integer number (12913240).

Almost surely, 2^85872913 is an apocalyptic number.

It is an amenable number.

85872913 is a deficient number, since it is larger than the sum of its proper divisors (17433007).

85872913 is a wasteful number, since it uses less digits than its factorization.

85872913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645687.

The product of its digits is 120960, while the sum is 43.

The square root of 85872913 is about 9266.7638903773. The cubic root of 85872913 is about 441.1829616715.

The spelling of 85872913 in words is "eighty-five million, eight hundred seventy-two thousand, nine hundred thirteen".