89844121 has 4 divisors (see below), whose sum is σ = 89863092. Its totient is φ = 89825152.

The previous prime is 89844113. The next prime is 89844127. The reversal of 89844121 is 12144898.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 17338896 + 72505225 = 4164^2 + 8515^2 .

It is a cyclic number.

It is not a de Polignac number, because 89844121 - 2³ = 89844113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89844127) 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, 4221 + ... + 14053.

It is an arithmetic number, because the mean of its divisors is an integer number (22465773).

Almost surely, 2^89844121 is an apocalyptic number.

It is an amenable number.

89844121 is a deficient number, since it is larger than the sum of its proper divisors (18971).

89844121 is an equidigital number, since it uses as much as digits as its factorization.

89844121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18970.

The product of its digits is 18432, while the sum is 37.

The square root of 89844121 is about 9478.6138754567. The cubic root of 89844121 is about 447.8816003681.

The spelling of 89844121 in words is "eighty-nine million, eight hundred forty-four thousand, one hundred twenty-one".