89240564 has 18 divisors (see below), whose sum is σ = 181668690. Its totient is φ = 38245872.

The previous prime is 89240563. The next prime is 89240573. The reversal of 89240564 is 46504298.

It can be written as a sum of positive squares in only one way, i.e., 83576164 + 5664400 = 9142^2 + 2380^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89240563) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 227459 + ... + 227850.

It is an arithmetic number, because the mean of its divisors is an integer number (10092705).

Almost surely, 2^89240564 is an apocalyptic number.

It is an amenable number.

89240564 is an abundant number, since it is smaller than the sum of its proper divisors (92428126).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89240564 is a wasteful number, since it uses less digits than its factorization.

89240564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455327 (or 455318 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 89240564 is about 9446.7223945663. The cubic root of 89240564 is about 446.8764161789.

The spelling of 89240564 in words is "eighty-nine million, two hundred forty thousand, five hundred sixty-four".