879863 has 2 divisors, whose sum is σ = 879864. Its totient is φ = 879862.

The previous prime is 879859. The next prime is 879881. The reversal of 879863 is 368978.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 879863 - 2² = 879859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 879863.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (872863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439931 + 439932.

It is an arithmetic number, because the mean of its divisors is an integer number (439932).

2⁸⁷⁹⁸⁶³ is an apocalyptic number.

879863 is a deficient number, since it is larger than the sum of its proper divisors (1).

879863 is an equidigital number, since it uses as much as digits as its factorization.

879863 is an evil number, because the sum of its binary digits is even.

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

The square root of 879863 is about 938.0101278771. The cubic root of 879863 is about 95.8234239701.

The spelling of 879863 in words is "eight hundred seventy-nine thousand, eight hundred sixty-three".