878231903 has 2 divisors, whose sum is σ = 878231904. Its totient is φ = 878231902.

The previous prime is 878231863. The next prime is 878231909. The reversal of 878231903 is 309132878.

878231903 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 878231903 - 2⁸ = 878231647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (878231909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439115951 + 439115952.

It is an arithmetic number, because the mean of its divisors is an integer number (439115952).

Almost surely, 2^878231903 is an apocalyptic number.

878231903 is a deficient number, since it is larger than the sum of its proper divisors (1).

878231903 is an equidigital number, since it uses as much as digits as its factorization.

878231903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 878231903 is about 29634.9776952843. The cubic root of 878231903 is about 957.6417460189.

The spelling of 878231903 in words is "eight hundred seventy-eight million, two hundred thirty-one thousand, nine hundred three".