89555645 has 8 divisors (see below), whose sum is σ = 113123040. Its totient is φ = 67873680.

The previous prime is 89555639. The next prime is 89555659. The reversal of 89555645 is 54655598.

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

It is not a de Polignac number, because 89555645 - 2⁶ = 89555581 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 89555645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 471251 + ... + 471440.

It is an arithmetic number, because the mean of its divisors is an integer number (14140380).

Almost surely, 2^89555645 is an apocalyptic number.

It is an amenable number.

89555645 is a deficient number, since it is larger than the sum of its proper divisors (23567395).

89555645 is a wasteful number, since it uses less digits than its factorization.

89555645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942715.

The product of its digits is 1080000, while the sum is 47.

The square root of 89555645 is about 9463.3844368704. The cubic root of 89555645 is about 447.4017261807.

Subtracting from 89555645 its sum of digits (47), we obtain a palindrome (89555598).

The spelling of 89555645 in words is "eighty-nine million, five hundred fifty-five thousand, six hundred forty-five".