878961313 has 2 divisors, whose sum is σ = 878961314. Its totient is φ = 878961312.

The previous prime is 878961301. The next prime is 878961341. The reversal of 878961313 is 313169878.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 662959504 + 216001809 = 25748^2 + 14697^2 .

It is a cyclic number.

It is not a de Polignac number, because 878961313 - 2²⁹ = 342090401 is a prime.

It is not a weakly prime, because it can be changed into another prime (878961113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439480656 + 439480657.

It is an arithmetic number, because the mean of its divisors is an integer number (439480657).

Almost surely, 2^878961313 is an apocalyptic number.

It is an amenable number.

878961313 is a deficient number, since it is larger than the sum of its proper divisors (1).

878961313 is an equidigital number, since it uses as much as digits as its factorization.

878961313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 46.

The square root of 878961313 is about 29647.2817135062. The cubic root of 878961313 is about 957.9067937702.

The spelling of 878961313 in words is "eight hundred seventy-eight million, nine hundred sixty-one thousand, three hundred thirteen".