89783563 has 4 divisors (see below), whose sum is σ = 91973448. Its totient is φ = 87593680.

The previous prime is 89783557. The next prime is 89783567. The reversal of 89783563 is 36538798.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 89783563 - 2⁹ = 89783051 is a prime.

It is a super-2 number, since 2×89783563² = 16122176369949938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89783567) 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, 1094881 + ... + 1094962.

It is an arithmetic number, because the mean of its divisors is an integer number (22993362).

Almost surely, 2^89783563 is an apocalyptic number.

89783563 is a deficient number, since it is larger than the sum of its proper divisors (2189885).

89783563 is a wasteful number, since it uses less digits than its factorization.

89783563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2189884.

The product of its digits is 1088640, while the sum is 49.

The square root of 89783563 is about 9475.4188825613. The cubic root of 89783563 is about 447.7809485954.

The spelling of 89783563 in words is "eighty-nine million, seven hundred eighty-three thousand, five hundred sixty-three".