89412990 has 64 divisors (see below), whose sum is σ = 224501760. Its totient is φ = 22763520.

The previous prime is 89412971. The next prime is 89412991. The reversal of 89412990 is 9921498.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89412991) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72862 + ... + 74078.

It is an arithmetic number, because the mean of its divisors is an integer number (3507840).

Almost surely, 2^89412990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89412990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112250880).

89412990 is an abundant number, since it is smaller than the sum of its proper divisors (135088770).

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

89412990 is a wasteful number, since it uses less digits than its factorization.

89412990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337.

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 89412990 is about 9455.8442246052. The cubic root of 89412990 is about 447.1640415093.

The spelling of 89412990 in words is "eighty-nine million, four hundred twelve thousand, nine hundred ninety".