89563 has 2 divisors, whose sum is σ = 89564. Its totient is φ = 89562.

The previous prime is 89561. The next prime is 89567. The reversal of 89563 is 36598.

89563 is nontrivially palindromic in base 6.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89563 - 2¹ = 89561 is a prime.

Together with 89561, it forms a pair of twin primes.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (89561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44781 + 44782.

It is an arithmetic number, because the mean of its divisors is an integer number (44782).

2⁸⁹⁵⁶³ is an apocalyptic number.

89563 is a deficient number, since it is larger than the sum of its proper divisors (1).

89563 is an equidigital number, since it uses as much as digits as its factorization.

89563 is an evil number, because the sum of its binary digits is even.

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

The square root of 89563 is about 299.2707803980. The cubic root of 89563 is about 44.7413973872.

The spelling of 89563 in words is "eighty-nine thousand, five hundred sixty-three".