879947903 has 2 divisors, whose sum is σ = 879947904. Its totient is φ = 879947902.

The previous prime is 879947881. The next prime is 879947909. The reversal of 879947903 is 309749978.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 879947903 - 2¹⁸ = 879685759 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (879947909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439973951 + 439973952.

It is an arithmetic number, because the mean of its divisors is an integer number (439973952).

Almost surely, 2^879947903 is an apocalyptic number.

879947903 is a deficient number, since it is larger than the sum of its proper divisors (1).

879947903 is an equidigital number, since it uses as much as digits as its factorization.

879947903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3429216, while the sum is 56.

The square root of 879947903 is about 29663.9158406303. The cubic root of 879947903 is about 958.2650605393.

The spelling of 879947903 in words is "eight hundred seventy-nine million, nine hundred forty-seven thousand, nine hundred three".