873687 has 8 divisors (see below), whose sum is σ = 1172080. Its totient is φ = 578880.

The previous prime is 873671. The next prime is 873689. The reversal of 873687 is 786378.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 873687 - 2⁴ = 873671 is a prime.

It is a Duffinian number.

873687 is a lucky number.

It is a plaindrome in base 13.

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 873687.

It is not an unprimeable number, because it can be changed into a prime (873689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262 + ... + 1347.

It is an arithmetic number, because the mean of its divisors is an integer number (146510).

2⁸⁷³⁶⁸⁷ is an apocalyptic number.

873687 is a deficient number, since it is larger than the sum of its proper divisors (298393).

873687 is a wasteful number, since it uses less digits than its factorization.

873687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1793.

The product of its digits is 56448, while the sum is 39.

The square root of 873687 is about 934.7122551887. The cubic root of 873687 is about 95.5986936908.

The spelling of 873687 in words is "eight hundred seventy-three thousand, six hundred eighty-seven".