878643203 has 2 divisors, whose sum is σ = 878643204. Its totient is φ = 878643202.

The previous prime is 878643197. The next prime is 878643289. The reversal of 878643203 is 302346878.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 878643203 - 2¹⁸ = 878381059 is a prime.

It is not a weakly prime, because it can be changed into another prime (878643503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439321601 + 439321602.

It is an arithmetic number, because the mean of its divisors is an integer number (439321602).

Almost surely, 2^878643203 is an apocalyptic number.

878643203 is a deficient number, since it is larger than the sum of its proper divisors (1).

878643203 is an equidigital number, since it uses as much as digits as its factorization.

878643203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 41.

The square root of 878643203 is about 29641.9163179441. The cubic root of 878643203 is about 957.7912192870.

The spelling of 878643203 in words is "eight hundred seventy-eight million, six hundred forty-three thousand, two hundred three".