872858015 has 4 divisors (see below), whose sum is σ = 1047429624. Its totient is φ = 698286408.

The previous prime is 872857987. The next prime is 872858017. The reversal of 872858015 is 510858278.

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

It is a cyclic number.

It is not a de Polignac number, because 872858015 - 2⁸ = 872857759 is a prime.

It is a super-2 number, since 2×872858015² = 1523762228699480450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872858017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87285797 + ... + 87285806.

It is an arithmetic number, because the mean of its divisors is an integer number (261857406).

Almost surely, 2^872858015 is an apocalyptic number.

872858015 is a deficient number, since it is larger than the sum of its proper divisors (174571609).

872858015 is a wasteful number, since it uses less digits than its factorization.

872858015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174571608.

The product of its (nonzero) digits is 179200, while the sum is 44.

The square root of 872858015 is about 29544.1705755975. The cubic root of 872858015 is about 955.6844832022.

The spelling of 872858015 in words is "eight hundred seventy-two million, eight hundred fifty-eight thousand, fifteen".