89009790 has 128 divisors (see below), whose sum is σ = 239345280. Its totient is φ = 21086208.

The previous prime is 89009779. The next prime is 89009801. The reversal of 89009790 is 9790098.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (89009779) and next prime (89009801).

89009790 is a modest number, since divided by 9790 gives 8900 as remainder.

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, 1000066 + ... + 1000154.

It is an arithmetic number, because the mean of its divisors is an integer number (1869885).

Almost surely, 2^89009790 is an apocalyptic number.

It is a pronic number, being equal to 9434×9435.

It is a practical number, because each smaller number is the sum of distinct divisors of 89009790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119672640).

89009790 is an abundant number, since it is smaller than the sum of its proper divisors (150335490).

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

89009790 is a wasteful number, since it uses less digits than its factorization.

89009790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206.

The product of its (nonzero) digits is 40824, while the sum is 42.

The square root of 89009790 is about 9434.4999867508. The cubic root of 89009790 is about 446.4908796902.

The spelling of 89009790 in words is "eighty-nine million, nine thousand, seven hundred ninety".