89842809 has 8 divisors (see below), whose sum is σ = 136903360. Its totient is φ = 51338736.

The previous prime is 89842801. The next prime is 89842859. The reversal of 89842809 is 90824898.

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

It is not a de Polignac number, because 89842809 - 2³ = 89842801 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (89842801) 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, 2139094 + ... + 2139135.

It is an arithmetic number, because the mean of its divisors is an integer number (17112920).

Almost surely, 2^89842809 is an apocalyptic number.

It is an amenable number.

89842809 is a deficient number, since it is larger than the sum of its proper divisors (47060551).

89842809 is a wasteful number, since it uses less digits than its factorization.

89842809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4278239.

The product of its (nonzero) digits is 331776, while the sum is 48.

The square root of 89842809 is about 9478.5446667724. The cubic root of 89842809 is about 447.8794202087.

The spelling of 89842809 in words is "eighty-nine million, eight hundred forty-two thousand, eight hundred nine".