873615 has 16 divisors (see below), whose sum is σ = 1411200. Its totient is φ = 461472.

The previous prime is 873571. The next prime is 873617. The reversal of 873615 is 516378.

It is not a de Polignac number, because 873615 - 2⁸ = 873359 is a prime.

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 873615.

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

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1876 + ... + 2294.

It is an arithmetic number, because the mean of its divisors is an integer number (88200).

2⁸⁷³⁶¹⁵ is an apocalyptic number.

873615 is a deficient number, since it is larger than the sum of its proper divisors (537585).

873615 is a wasteful number, since it uses less digits than its factorization.

873615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566.

The product of its digits is 5040, while the sum is 30.

The square root of 873615 is about 934.6737398686. The cubic root of 873615 is about 95.5960675425.

The spelling of 873615 in words is "eight hundred seventy-three thousand, six hundred fifteen".