873129 has 4 divisors (see below), whose sum is σ = 1164176. Its totient is φ = 582084.

The previous prime is 873121. The next prime is 873133. The reversal of 873129 is 921378.

It is a happy number.

873129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 873129 - 2³ = 873121 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 873096 and 873105.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 873129.

It is not an unprimeable number, because it can be changed into a prime (873121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145519 + ... + 145524.

It is an arithmetic number, because the mean of its divisors is an integer number (291044).

2⁸⁷³¹²⁹ is an apocalyptic number.

It is an amenable number.

873129 is a deficient number, since it is larger than the sum of its proper divisors (291047).

873129 is a wasteful number, since it uses less digits than its factorization.

873129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291046.

The product of its digits is 3024, while the sum is 30.

The square root of 873129 is about 934.4137199335. The cubic root of 873129 is about 95.5783372659.

It can be divided in two parts, 8 and 73129, that added together give a palindrome (73137).

The spelling of 873129 in words is "eight hundred seventy-three thousand, one hundred twenty-nine".