872513 has 8 divisors (see below), whose sum is σ = 906048. Its totient is φ = 839664.

The previous prime is 872479. The next prime is 872533. The reversal of 872513 is 315278.

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 872513 - 2⁸ = 872257 is a prime.

It is a super-2 number, since 2×872513² = 1522557870338, which contains 22 as substring.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 872513.

It is not an unprimeable number, because it can be changed into a prime (872533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4331 + ... + 4527.

It is an arithmetic number, because the mean of its divisors is an integer number (113256).

2⁸⁷²⁵¹³ is an apocalyptic number.

It is an amenable number.

872513 is a deficient number, since it is larger than the sum of its proper divisors (33535).

872513 is a wasteful number, since it uses less digits than its factorization.

872513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343.

The product of its digits is 1680, while the sum is 26.

The square root of 872513 is about 934.0840433280. The cubic root of 872513 is about 95.5558548656. Note that the first 3 decimals are identical.

The spelling of 872513 in words is "eight hundred seventy-two thousand, five hundred thirteen".