89838865 has 8 divisors (see below), whose sum is σ = 107904168. Its totient is φ = 71806080.

The previous prime is 89838857. The next prime is 89838901. The reversal of 89838865 is 56883898.

It can be written as a sum of positive squares in 4 ways, for example, as 18740241 + 71098624 = 4329^2 + 8432^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 89838865 - 2³ = 89838857 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1566 + ... + 13495.

It is an arithmetic number, because the mean of its divisors is an integer number (13488021).

Almost surely, 2^89838865 is an apocalyptic number.

It is an amenable number.

89838865 is a deficient number, since it is larger than the sum of its proper divisors (18065303).

89838865 is a wasteful number, since it uses less digits than its factorization.

89838865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16259.

The product of its digits is 3317760, while the sum is 55.

The square root of 89838865 is about 9478.3366156726. The cubic root of 89838865 is about 447.8728663090.

The spelling of 89838865 in words is "eighty-nine million, eight hundred thirty-eight thousand, eight hundred sixty-five".