900863 has 2 divisors, whose sum is σ = 900864. Its totient is φ = 900862.

The previous prime is 900821. The next prime is 900869. The reversal of 900863 is 368009.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 900863 - 2⁸ = 900607 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 900863.

It is not a weakly prime, because it can be changed into another prime (900869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450431 + 450432.

It is an arithmetic number, because the mean of its divisors is an integer number (450432).

2⁹⁰⁰⁸⁶³ is an apocalyptic number.

900863 is a deficient number, since it is larger than the sum of its proper divisors (1).

900863 is an equidigital number, since it uses as much as digits as its factorization.

900863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 900863 is about 949.1380300041. The cubic root of 900863 is about 96.5797885035.

The spelling of 900863 in words is "nine hundred thousand, eight hundred sixty-three".