879289 has 4 divisors (see below), whose sum is σ = 883456. Its totient is φ = 875124.

The previous prime is 879287. The next prime is 879299. The reversal of 879289 is 982978.

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, and also an emirpimes, since its reverse is a distinct semiprime: 982978 = 2 ⋅491489.

It is a cyclic number.

It is not a de Polignac number, because 879289 - 2¹ = 879287 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 (879283) 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, 1749 + ... + 2194.

It is an arithmetic number, because the mean of its divisors is an integer number (220864).

2⁸⁷⁹²⁸⁹ is an apocalyptic number.

It is an amenable number.

879289 is a deficient number, since it is larger than the sum of its proper divisors (4167).

879289 is a wasteful number, since it uses less digits than its factorization.

879289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4166.

The product of its digits is 72576, while the sum is 43.

The square root of 879289 is about 937.7041111139. The cubic root of 879289 is about 95.8025818578.

It can be divided in two parts, 8 and 79289, that added together give a palindrome (79297).

The spelling of 879289 in words is "eight hundred seventy-nine thousand, two hundred eighty-nine".