89644885 has 16 divisors (see below), whose sum is σ = 117895680. Its totient is φ = 64895040.

The previous prime is 89644883. The next prime is 89644909. The reversal of 89644885 is 58844698.

89644885 is nontrivially palindromic in base 2 and base 8.

It is not a de Polignac number, because 89644885 - 2¹ = 89644883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89644883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8611 + ... + 15919.

It is an arithmetic number, because the mean of its divisors is an integer number (7368480).

Almost surely, 2^89644885 is an apocalyptic number.

It is an amenable number.

89644885 is a deficient number, since it is larger than the sum of its proper divisors (28250795).

89644885 is a wasteful number, since it uses less digits than its factorization.

89644885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7548.

The product of its digits is 2211840, while the sum is 52.

The square root of 89644885 is about 9468.0982779014. The cubic root of 89644885 is about 447.5502851226.

The spelling of 89644885 in words is "eighty-nine million, six hundred forty-four thousand, eight hundred eighty-five".