872505315 has 24 divisors (see below), whose sum is σ = 1649829168. Its totient is φ = 423032640.

The previous prime is 872505313. The next prime is 872505349. The reversal of 872505315 is 513505278.

872505315 is a `hidden beast` number, since 8 + 72 + 50 + 531 + 5 = 666.

872505315 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 872505315 - 2¹ = 872505313 is a prime.

It is a super-2 number, since 2×872505315² = 1522531049406498450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 872505315.

It is not an unprimeable number, because it can be changed into a prime (872505311) 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, 880824 + ... + 881813.

It is an arithmetic number, because the mean of its divisors is an integer number (68742882).

Almost surely, 2^872505315 is an apocalyptic number.

872505315 is a deficient number, since it is larger than the sum of its proper divisors (777323853).

872505315 is a wasteful number, since it uses less digits than its factorization.

872505315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1762659 (or 1762656 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

The square root of 872505315 is about 29538.2009438625. The cubic root of 872505315 is about 955.5557431619. Note that the first 3 decimals are identical.

The spelling of 872505315 in words is "eight hundred seventy-two million, five hundred five thousand, three hundred fifteen".