868072585 has 4 divisors (see below), whose sum is σ = 1041687108. Its totient is φ = 694458064.

The previous prime is 868072553. The next prime is 868072603. The reversal of 868072585 is 585270868.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 122345721 + 745726864 = 11061^2 + 27308^2 .

It is a cyclic number.

It is not a de Polignac number, because 868072585 - 2⁵ = 868072553 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86807254 + ... + 86807263.

It is an arithmetic number, because the mean of its divisors is an integer number (260421777).

Almost surely, 2^868072585 is an apocalyptic number.

It is an amenable number.

868072585 is a deficient number, since it is larger than the sum of its proper divisors (173614523).

868072585 is a wasteful number, since it uses less digits than its factorization.

868072585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173614522.

The product of its (nonzero) digits is 1075200, while the sum is 49.

The square root of 868072585 is about 29463.0715472776. The cubic root of 868072585 is about 953.9347734515.

The spelling of 868072585 in words is "eight hundred sixty-eight million, seventy-two thousand, five hundred eighty-five".