89901563 has 4 divisors (see below), whose sum is σ = 89939280. Its totient is φ = 89863848.

The previous prime is 89901499. The next prime is 89901577. The reversal of 89901563 is 36510998.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36510998 = 2 ⋅18255499.

It is a cyclic number.

It is not a de Polignac number, because 89901563 - 2⁶ = 89901499 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 89901563.

It is not an unprimeable number, because it can be changed into a prime (89901583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15023 + ... + 20136.

It is an arithmetic number, because the mean of its divisors is an integer number (22484820).

Almost surely, 2^89901563 is an apocalyptic number.

89901563 is a deficient number, since it is larger than the sum of its proper divisors (37717).

89901563 is a wasteful number, since it uses less digits than its factorization.

89901563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37716.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 89901563 is about 9481.6434756850. The cubic root of 89901563 is about 447.9770313347.

The spelling of 89901563 in words is "eighty-nine million, nine hundred one thousand, five hundred sixty-three".