890563 has 2 divisors, whose sum is σ = 890564. Its totient is φ = 890562.

The previous prime is 890551. The next prime is 890597. The reversal of 890563 is 365098.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 890563 - 2⁵ = 890531 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (890543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 445281 + 445282.

It is an arithmetic number, because the mean of its divisors is an integer number (445282).

2⁸⁹⁰⁵⁶³ is an apocalyptic number.

890563 is a deficient number, since it is larger than the sum of its proper divisors (1).

890563 is an equidigital number, since it uses as much as digits as its factorization.

890563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 890563 is about 943.6964554347. The cubic root of 890563 is about 96.2102956493.

The spelling of 890563 in words is "eight hundred ninety thousand, five hundred sixty-three".