89311000 has 128 divisors (see below), whose sum is σ = 224040960. Its totient is φ = 33264000.

The previous prime is 89310983. The next prime is 89311009. The reversal of 89311000 is 11398.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89311009) 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, 1332967 + ... + 1333033.

It is an arithmetic number, because the mean of its divisors is an integer number (1750320).

Almost surely, 2^89311000 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 89311000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112020480).

89311000 is an abundant number, since it is smaller than the sum of its proper divisors (134729960).

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

89311000 is a wasteful number, since it uses less digits than its factorization.

89311000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 89311000 is about 9450.4497247486. The cubic root of 89311000 is about 446.9939558128.

Adding to 89311000 its reverse (11398), we get a palindrome (89322398).

The spelling of 89311000 in words is "eighty-nine million, three hundred eleven thousand".