900563 has 2 divisors, whose sum is σ = 900564. Its totient is φ = 900562.

The previous prime is 900553. The next prime is 900569. The reversal of 900563 is 365009.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 900563 - 2⁸ = 900307 is a prime.

It is a super-2 number, since 2×900563² = 1622027433938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (900569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450281 + 450282.

It is an arithmetic number, because the mean of its divisors is an integer number (450282).

2⁹⁰⁰⁵⁶³ is an apocalyptic number.

900563 is a deficient number, since it is larger than the sum of its proper divisors (1).

900563 is an equidigital number, since it uses as much as digits as its factorization.

900563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 900563 is about 948.9799787140. The cubic root of 900563 is about 96.5690665057.

The spelling of 900563 in words is "nine hundred thousand, five hundred sixty-three".