879257 has 4 divisors (see below), whose sum is σ = 930996. Its totient is φ = 827520.

The previous prime is 879247. The next prime is 879259. The reversal of 879257 is 752978.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 337561 + 541696 = 581^2 + 736^2 .

It is a cyclic number.

It is not a de Polignac number, because 879257 - 2⁸ = 879001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 879257.

It is not an unprimeable number, because it can be changed into a prime (879259) 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 3 ways as a sum of consecutive naturals, for example, 25844 + ... + 25877.

It is an arithmetic number, because the mean of its divisors is an integer number (232749).

2⁸⁷⁹²⁵⁷ is an apocalyptic number.

It is an amenable number.

879257 is a deficient number, since it is larger than the sum of its proper divisors (51739).

879257 is a wasteful number, since it uses less digits than its factorization.

879257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51738.

The product of its digits is 35280, while the sum is 38.

The square root of 879257 is about 937.6870480070. The cubic root of 879257 is about 95.8014196613.

The spelling of 879257 in words is "eight hundred seventy-nine thousand, two hundred fifty-seven".