89589889 has 4 divisors (see below), whose sum is σ = 89629780. Its totient is φ = 89550000.

The previous prime is 89589869. The next prime is 89589893. The reversal of 89589889 is 98898598.

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

It can be written as a sum of positive squares in 2 ways, for example, as 26863489 + 62726400 = 5183^2 + 7920^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89589889 is a prime.

It is a super-2 number, since 2×89589889² = 16052696422064642, which contains 22 as substring.

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 89589889.

It is not an unprimeable number, because it can be changed into a prime (89589869) 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, 16362 + ... + 21139.

It is an arithmetic number, because the mean of its divisors is an integer number (22407445).

Almost surely, 2^89589889 is an apocalyptic number.

It is an amenable number.

89589889 is a deficient number, since it is larger than the sum of its proper divisors (39891).

89589889 is a wasteful number, since it uses less digits than its factorization.

89589889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39890.

The product of its digits is 14929920, while the sum is 64.

The square root of 89589889 is about 9465.1935532244. The cubic root of 89589889 is about 447.4587442591.

The spelling of 89589889 in words is "eighty-nine million, five hundred eighty-nine thousand, eight hundred eighty-nine".