89220390 has 128 divisors (see below), whose sum is σ = 262656000. Its totient is φ = 18942336.

The previous prime is 89220389. The next prime is 89220457. The reversal of 89220390 is 9302298.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 235221 + ... + 235599.

It is an arithmetic number, because the mean of its divisors is an integer number (2052000).

Almost surely, 2^89220390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89220390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131328000).

89220390 is an abundant number, since it is smaller than the sum of its proper divisors (173435610).

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

89220390 is a wasteful number, since it uses less digits than its factorization.

89220390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 89220390 is about 9445.6545564614. The cubic root of 89220390 is about 446.8427395493.

The spelling of 89220390 in words is "eighty-nine million, two hundred twenty thousand, three hundred ninety".