89390563 has 2 divisors, whose sum is σ = 89390564. Its totient is φ = 89390562.

The previous prime is 89390551. The next prime is 89390597. The reversal of 89390563 is 36509398.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89390563 - 2⁹ = 89390051 is a prime.

It is not a weakly prime, because it can be changed into another prime (89390363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44695281 + 44695282.

It is an arithmetic number, because the mean of its divisors is an integer number (44695282).

Almost surely, 2^89390563 is an apocalyptic number.

89390563 is a deficient number, since it is larger than the sum of its proper divisors (1).

89390563 is an equidigital number, since it uses as much as digits as its factorization.

89390563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 89390563 is about 9454.6582698689. The cubic root of 89390563 is about 447.1266517648.

The spelling of 89390563 in words is "eighty-nine million, three hundred ninety thousand, five hundred sixty-three".