89166889 has 8 divisors (see below), whose sum is σ = 101962368. Its totient is φ = 76385760.

The previous prime is 89166871. The next prime is 89166893. The reversal of 89166889 is 98866198.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 89166889 - 2¹¹ = 89164841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89166899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20844 + ... + 24754.

It is an arithmetic number, because the mean of its divisors is an integer number (12745296).

Almost surely, 2^89166889 is an apocalyptic number.

It is an amenable number.

89166889 is a deficient number, since it is larger than the sum of its proper divisors (12795479).

89166889 is a wasteful number, since it uses less digits than its factorization.

89166889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7175.

The product of its digits is 1492992, while the sum is 55.

The square root of 89166889 is about 9442.8220887614. The cubic root of 89166889 is about 446.7534052857.

The spelling of 89166889 in words is "eighty-nine million, one hundred sixty-six thousand, eight hundred eighty-nine".