873613 has 16 divisors (see below), whose sum is σ = 1028160. Its totient is φ = 734976.

The previous prime is 873571. The next prime is 873617. The reversal of 873613 is 316378.

873613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 873613 - 2¹⁷ = 742541 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (873617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13006 + ... + 13072.

It is an arithmetic number, because the mean of its divisors is an integer number (64260).

2⁸⁷³⁶¹³ is an apocalyptic number.

It is an amenable number.

873613 is a deficient number, since it is larger than the sum of its proper divisors (154547).

873613 is a wasteful number, since it uses less digits than its factorization.

873613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156.

The product of its digits is 3024, while the sum is 28.

The square root of 873613 is about 934.6726699760. The cubic root of 873613 is about 95.5959945918.

The spelling of 873613 in words is "eight hundred seventy-three thousand, six hundred thirteen".