873189 has 6 divisors (see below), whose sum is σ = 1261286. Its totient is φ = 582120.

The previous prime is 873157. The next prime is 873209. The reversal of 873189 is 981378.

It can be written as a sum of positive squares in only one way, i.e., 613089 + 260100 = 783^2 + 510^2 .

It is not a de Polignac number, because 873189 - 2⁵ = 873157 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 (873109) 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 5 ways as a sum of consecutive naturals, for example, 48502 + ... + 48519.

2⁸⁷³¹⁸⁹ is an apocalyptic number.

It is an amenable number.

873189 is a deficient number, since it is larger than the sum of its proper divisors (388097).

873189 is a wasteful number, since it uses less digits than its factorization.

873189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97027 (or 97024 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 873189 is about 934.4458250749. The cubic root of 873189 is about 95.5805265448.

The spelling of 873189 in words is "eight hundred seventy-three thousand, one hundred eighty-nine".