89485621 has 4 divisors (see below), whose sum is σ = 90306700. Its totient is φ = 88664544.

The previous prime is 89485589. The next prime is 89485633. The reversal of 89485621 is 12658498.

It is a happy number.

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 48024900 + 41460721 = 6930^2 + 6439^2 .

It is a cyclic number.

It is not a de Polignac number, because 89485621 - 2⁵ = 89485589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89483621) 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, 410376 + ... + 410593.

It is an arithmetic number, because the mean of its divisors is an integer number (22576675).

Almost surely, 2^89485621 is an apocalyptic number.

It is an amenable number.

89485621 is a deficient number, since it is larger than the sum of its proper divisors (821079).

89485621 is a wasteful number, since it uses less digits than its factorization.

89485621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821078.

The product of its digits is 138240, while the sum is 43.

The square root of 89485621 is about 9459.6839799224. The cubic root of 89485621 is about 447.2850872373.

The spelling of 89485621 in words is "eighty-nine million, four hundred eighty-five thousand, six hundred twenty-one".