899863 has 2 divisors, whose sum is σ = 899864. Its totient is φ = 899862.

The previous prime is 899851. The next prime is 899881. The reversal of 899863 is 368998.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 899863 - 2⁵ = 899831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (899893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449931 + 449932.

It is an arithmetic number, because the mean of its divisors is an integer number (449932).

2⁸⁹⁹⁸⁶³ is an apocalyptic number.

899863 is a deficient number, since it is larger than the sum of its proper divisors (1).

899863 is an equidigital number, since it uses as much as digits as its factorization.

899863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 43.

The square root of 899863 is about 948.6110899626. The cubic root of 899863 is about 96.5440392473.

The spelling of 899863 in words is "eight hundred ninety-nine thousand, eight hundred sixty-three".