878929 has 2 divisors, whose sum is σ = 878930. Its totient is φ = 878928.

The previous prime is 878893. The next prime is 878939. The reversal of 878929 is 929878.

878929 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 859329 + 19600 = 927^2 + 140^2 .

It is a cyclic number.

It is not a de Polignac number, because 878929 - 2¹⁵ = 846161 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (878939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439464 + 439465.

It is an arithmetic number, because the mean of its divisors is an integer number (439465).

2⁸⁷⁸⁹²⁹ is an apocalyptic number.

It is an amenable number.

878929 is a deficient number, since it is larger than the sum of its proper divisors (1).

878929 is an equidigital number, since it uses as much as digits as its factorization.

878929 is an evil number, because the sum of its binary digits is even.

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

The square root of 878929 is about 937.5121332548. The cubic root of 878929 is about 95.7895055210.

The spelling of 878929 in words is "eight hundred seventy-eight thousand, nine hundred twenty-nine".