89645568 has 40 divisors (see below), whose sum is σ = 238825488. Its totient is φ = 29881344.

The previous prime is 89645551. The next prime is 89645579. The reversal of 89645568 is 86554698.

It is a self number, because there is not a number n which added to its sum of digits gives 89645568.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27646 + ... + 30717.

Almost surely, 2^89645568 is an apocalyptic number.

It is an amenable number.

89645568 is an abundant number, since it is smaller than the sum of its proper divisors (149179920).

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

89645568 is an equidigital number, since it uses as much as digits as its factorization.

89645568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58384 (or 58368 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 51.

The square root of 89645568 is about 9468.1343463219. The cubic root of 89645568 is about 447.5514217409.

It can be divided in two parts, 896 and 45568, that added together give a palindrome (46464).

The spelling of 89645568 in words is "eighty-nine million, six hundred forty-five thousand, five hundred sixty-eight".