89900280 has 112 divisors (see below), whose sum is σ = 303373080. Its totient is φ = 23965632.

The previous prime is 89900273. The next prime is 89900281. The reversal of 89900280 is 8200998.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89900281) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 27619 + ... + 30701.

Almost surely, 2^89900280 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 89900280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151686540).

89900280 is an abundant number, since it is smaller than the sum of its proper divisors (213472800).

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

89900280 is a wasteful number, since it uses less digits than its factorization.

89900280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3112 (or 3093 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 89900280 is about 9481.5758183964. The cubic root of 89900280 is about 447.9749002732.

The spelling of 89900280 in words is "eighty-nine million, nine hundred thousand, two hundred eighty".