872625915 has 24 divisors (see below), whose sum is σ = 1728631008. Its totient is φ = 398914560.

The previous prime is 872625899. The next prime is 872625917. The reversal of 872625915 is 519526278.

872625915 is a `hidden beast` number, since 8 + 7 + 2 + 625 + 9 + 15 = 666.

It is not a de Polignac number, because 872625915 - 2⁴ = 872625899 is a prime.

It is a super-2 number, since 2×872625915² = 1522951975059174450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (872625917) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1384806 + ... + 1385435.

It is an arithmetic number, because the mean of its divisors is an integer number (72026292).

Almost surely, 2^872625915 is an apocalyptic number.

872625915 is a deficient number, since it is larger than the sum of its proper divisors (856005093).

872625915 is a wasteful number, since it uses less digits than its factorization.

872625915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2770259 (or 2770256 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 872625915 is about 29540.2422975845. The cubic root of 872625915 is about 955.5997676171.

The spelling of 872625915 in words is "eight hundred seventy-two million, six hundred twenty-five thousand, nine hundred fifteen".