89809144 has 16 divisors (see below), whose sum is σ = 169368120. Its totient is φ = 44644320.

The previous prime is 89809103. The next prime is 89809157. The reversal of 89809144 is 44190898.

It is a self number, because there is not a number n which added to its sum of digits gives 89809144.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31062 + ... + 33829.

Almost surely, 2^89809144 is an apocalyptic number.

It is an amenable number.

89809144 is a deficient number, since it is larger than the sum of its proper divisors (79558976).

89809144 is a wasteful number, since it uses less digits than its factorization.

89809144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65070 (or 65066 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 89809144 is about 9476.7686475929. The cubic root of 89809144 is about 447.8234715857.

The spelling of 89809144 in words is "eighty-nine million, eight hundred nine thousand, one hundred forty-four".