89190009 has 24 divisors (see below), whose sum is σ = 136344000. Its totient is φ = 56026080.

The previous prime is 89189999. The next prime is 89190037. The reversal of 89190009 is 90009198.

It is not a de Polignac number, because 89190009 - 2⁸ = 89189753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89190209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32719 + ... + 35339.

It is an arithmetic number, because the mean of its divisors is an integer number (5681000).

Almost surely, 2^89190009 is an apocalyptic number.

It is an amenable number.

89190009 is a deficient number, since it is larger than the sum of its proper divisors (47153991).

89190009 is a wasteful number, since it uses less digits than its factorization.

89190009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2845 (or 2842 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 36.

The square root of 89190009 is about 9444.0462197090. The cubic root of 89190009 is about 446.7920147077.

The spelling of 89190009 in words is "eighty-nine million, one hundred ninety thousand, nine".