89171001 has 24 divisors (see below), whose sum is σ = 136772064. Its totient is φ = 55789440.

The previous prime is 89170979. The next prime is 89171003. The reversal of 89171001 is 10017198.

It is not a de Polignac number, because 89171001 - 2⁶ = 89170937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89171003) by changing a digit.

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, 74530 + ... + 75716.

It is an arithmetic number, because the mean of its divisors is an integer number (5698836).

Almost surely, 2^89171001 is an apocalyptic number.

It is an amenable number.

89171001 is a deficient number, since it is larger than the sum of its proper divisors (47601063).

89171001 is a wasteful number, since it uses less digits than its factorization.

89171001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701 (or 1698 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 27.

The square root of 89171001 is about 9443.0398177705. The cubic root of 89171001 is about 446.7602726397.

Adding to 89171001 its reverse (10017198), we get a palindrome (99188199).

The spelling of 89171001 in words is "eighty-nine million, one hundred seventy-one thousand, one".