89171400 has 96 divisors (see below), whose sum is σ = 277884000. Its totient is φ = 23654400.

The previous prime is 89171377. The next prime is 89171417. The reversal of 89171400 is 417198.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 198376 + ... + 198824.

It is an arithmetic number, because the mean of its divisors is an integer number (2894625).

Almost surely, 2^89171400 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 89171400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138942000).

89171400 is an abundant number, since it is smaller than the sum of its proper divisors (188712600).

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

89171400 is a wasteful number, since it uses less digits than its factorization.

89171400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799 (or 790 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 89171400 is about 9443.0609444184. The cubic root of 89171400 is about 446.7609389889.

Adding to 89171400 its reverse (417198), we get a palindrome (89588598).

The spelling of 89171400 in words is "eighty-nine million, one hundred seventy-one thousand, four hundred".