889990563 has 64 divisors (see below), whose sum is σ = 1568931840. Its totient is φ = 435196800.

The previous prime is 889990561. The next prime is 889990597. The reversal of 889990563 is 365099988.

It is not a de Polignac number, because 889990563 - 2¹ = 889990561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (889990561) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 263278 + ... + 266636.

It is an arithmetic number, because the mean of its divisors is an integer number (24514560).

Almost surely, 2^889990563 is an apocalyptic number.

889990563 is a deficient number, since it is larger than the sum of its proper divisors (678941277).

889990563 is a wasteful number, since it uses less digits than its factorization.

889990563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3448.

The product of its (nonzero) digits is 4199040, while the sum is 57.

The square root of 889990563 is about 29832.7096154540. The cubic root of 889990563 is about 961.8967718010.

The spelling of 889990563 in words is "eight hundred eighty-nine million, nine hundred ninety thousand, five hundred sixty-three".