989289801 has 16 divisors (see below), whose sum is σ = 1478589120. Its totient is φ = 653688000.

The previous prime is 989289751. The next prime is 989289809. The reversal of 989289801 is 108982989.

It is a happy number.

It is not a de Polignac number, because 989289801 - 2⁶ = 989289737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (989289809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159075 + ... + 165176.

It is an arithmetic number, because the mean of its divisors is an integer number (92411820).

Almost surely, 2^989289801 is an apocalyptic number.

It is an amenable number.

989289801 is a deficient number, since it is larger than the sum of its proper divisors (489299319).

989289801 is a wasteful number, since it uses less digits than its factorization.

989289801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324373 (or 324367 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 54.

The square root of 989289801 is about 31452.9776173894. The cubic root of 989289801 is about 996.4171119109.

The spelling of 989289801 in words is "nine hundred eighty-nine million, two hundred eighty-nine thousand, eight hundred one".