878957 has 2 divisors, whose sum is σ = 878958. Its totient is φ = 878956.

The previous prime is 878953. The next prime is 878987. The reversal of 878957 is 759878.

878957 is nontrivially palindromic in base 16.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 808201 + 70756 = 899^2 + 266^2 .

It is a cyclic number.

It is not a de Polignac number, because 878957 - 2² = 878953 is a prime.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 878957.

It is not a weakly prime, because it can be changed into another prime (878953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439478 + 439479.

It is an arithmetic number, because the mean of its divisors is an integer number (439479).

2⁸⁷⁸⁹⁵⁷ is an apocalyptic number.

It is an amenable number.

878957 is a deficient number, since it is larger than the sum of its proper divisors (1).

878957 is an equidigital number, since it uses as much as digits as its factorization.

878957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 44.

The square root of 878957 is about 937.5270662760. The cubic root of 878957 is about 95.7905226974.

The spelling of 878957 in words is "eight hundred seventy-eight thousand, nine hundred fifty-seven".