89994520 has 128 divisors (see below), whose sum is σ = 257126400. Its totient is φ = 27532800.

The previous prime is 89994497. The next prime is 89994523. The reversal of 89994520 is 2549998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89994523) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 187641 + ... + 188119.

It is an arithmetic number, because the mean of its divisors is an integer number (2008800).

Almost surely, 2^89994520 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 89994520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128563200).

89994520 is an abundant number, since it is smaller than the sum of its proper divisors (167131880).

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

89994520 is a wasteful number, since it uses less digits than its factorization.

89994520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569 (or 565 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 46.

The square root of 89994520 is about 9486.5441547489. The cubic root of 89994520 is about 448.1313788792.

The spelling of 89994520 in words is "eighty-nine million, nine hundred ninety-four thousand, five hundred twenty".