89864280 has 144 divisors (see below), whose sum is σ = 321179040. Its totient is φ = 21774720.

The previous prime is 89864273. The next prime is 89864323. The reversal of 89864280 is 8246898.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 42529 + ... + 44591.

It is an arithmetic number, because the mean of its divisors is an integer number (2230410).

Almost surely, 2^89864280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89864280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160589520).

89864280 is an abundant number, since it is smaller than the sum of its proper divisors (231314760).

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

89864280 is a wasteful number, since it uses less digits than its factorization.

89864280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102 (or 2084 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 89864280 is about 9479.6772096944. The cubic root of 89864280 is about 447.9150960488.

The spelling of 89864280 in words is "eighty-nine million, eight hundred sixty-four thousand, two hundred eighty".