89605000 has 40 divisors (see below), whose sum is σ = 209956230. Its totient is φ = 35840000.

The previous prime is 89604989. The next prime is 89605001. The reversal of 89605000 is 50698.

It can be written as a sum of positive squares in 5 ways, for example, as 4485924 + 85119076 = 2118^2 + 9226^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 89605000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89605001) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3961 + ... + 13960.

Almost surely, 2^89605000 is an apocalyptic number.

It is an amenable number.

89605000 is an abundant number, since it is smaller than the sum of its proper divisors (120351230).

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

89605000 is a wasteful number, since it uses less digits than its factorization.

89605000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17947 (or 17928 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 89605000 is about 9465.9917599795. The cubic root of 89605000 is about 447.4839002562.

Adding to 89605000 its reverse (50698), we get a palindrome (89655698).

The spelling of 89605000 in words is "eighty-nine million, six hundred five thousand".