878942563 has 2 divisors, whose sum is σ = 878942564. Its totient is φ = 878942562.

The previous prime is 878942549. The next prime is 878942573. The reversal of 878942563 is 365249878.

878942563 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 is a cyclic number.

It is not a de Polignac number, because 878942563 - 2⁵ = 878942531 is a prime.

It is equal to p_44987965 and since 878942563 and 44987965 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 878942563.

It is not a weakly prime, because it can be changed into another prime (878942503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439471281 + 439471282.

It is an arithmetic number, because the mean of its divisors is an integer number (439471282).

Almost surely, 2^878942563 is an apocalyptic number.

878942563 is a deficient number, since it is larger than the sum of its proper divisors (1).

878942563 is an equidigital number, since it uses as much as digits as its factorization.

878942563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2903040, while the sum is 52.

The square root of 878942563 is about 29646.9654939591. The cubic root of 878942563 is about 957.8999823669.

The spelling of 878942563 in words is "eight hundred seventy-eight million, nine hundred forty-two thousand, five hundred sixty-three".