89170889 has 4 divisors (see below), whose sum is σ = 90682320. Its totient is φ = 87659460.

The previous prime is 89170877. The next prime is 89170901. The reversal of 89170889 is 98807198.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (89170877) and next prime (89170901).

It is a cyclic number.

It is not a de Polignac number, because 89170889 - 2¹⁶ = 89105353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89170489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 755627 + ... + 755744.

It is an arithmetic number, because the mean of its divisors is an integer number (22670580).

Almost surely, 2^89170889 is an apocalyptic number.

It is an amenable number.

89170889 is a deficient number, since it is larger than the sum of its proper divisors (1511431).

89170889 is a wasteful number, since it uses less digits than its factorization.

89170889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1511430.

The product of its (nonzero) digits is 290304, while the sum is 50.

The square root of 89170889 is about 9443.0338874749. The cubic root of 89170889 is about 446.7600855939.

The spelling of 89170889 in words is "eighty-nine million, one hundred seventy thousand, eight hundred eighty-nine".