872653 has 4 divisors (see below), whose sum is σ = 874620. Its totient is φ = 870688.

The previous prime is 872647. The next prime is 872657. The reversal of 872653 is 356278.

872653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 813604 + 59049 = 902^2 + 243^2 .

It is a cyclic number.

It is not a de Polignac number, because 872653 - 2⁵ = 872621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872657) 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, 33 + ... + 1321.

It is an arithmetic number, because the mean of its divisors is an integer number (218655).

2⁸⁷²⁶⁵³ is an apocalyptic number.

It is an amenable number.

872653 is a deficient number, since it is larger than the sum of its proper divisors (1967).

872653 is a wasteful number, since it uses less digits than its factorization.

872653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1966.

The product of its digits is 10080, while the sum is 31.

The square root of 872653 is about 934.1589800457. The cubic root of 872653 is about 95.5609654309.

The spelling of 872653 in words is "eight hundred seventy-two thousand, six hundred fifty-three".