873631 has 8 divisors (see below), whose sum is σ = 975744. Its totient is φ = 775320.

The previous prime is 873619. The next prime is 873641. The reversal of 873631 is 136378.

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 873631 - 2¹⁵ = 840863 is a prime.

It is a super-2 number, since 2×873631² = 1526462248322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 873631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (873641) 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, 451 + ... + 1396.

It is an arithmetic number, because the mean of its divisors is an integer number (121968).

2⁸⁷³⁶³¹ is an apocalyptic number.

873631 is a deficient number, since it is larger than the sum of its proper divisors (102113).

873631 is a wasteful number, since it uses less digits than its factorization.

873631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901.

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

The square root of 873631 is about 934.6822989658. The cubic root of 873631 is about 95.5966511435.

The spelling of 873631 in words is "eight hundred seventy-three thousand, six hundred thirty-one".