89485830 has 128 divisors (see below), whose sum is σ = 275788800. Its totient is φ = 20224512.

The previous prime is 89485829. The next prime is 89485843. The reversal of 89485830 is 3858498.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 213361 + ... + 213779.

It is an arithmetic number, because the mean of its divisors is an integer number (2154600).

Almost surely, 2^89485830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89485830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137894400).

89485830 is an abundant number, since it is smaller than the sum of its proper divisors (186302970).

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

89485830 is a wasteful number, since it uses less digits than its factorization.

89485830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555 (or 549 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 89485830 is about 9459.6950267966. The cubic root of 89485830 is about 447.2854354591.

The spelling of 89485830 in words is "eighty-nine million, four hundred eighty-five thousand, eight hundred thirty".