89024021 has 2 divisors, whose sum is σ = 89024022. Its totient is φ = 89024020.

The previous prime is 89024017. The next prime is 89024077. The reversal of 89024021 is 12042098.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79032100 + 9991921 = 8890^2 + 3161^2 .

It is a cyclic number.

It is not a de Polignac number, because 89024021 - 2² = 89024017 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89024521) by changing a digit.

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 as a sum of consecutive naturals, namely, 44512010 + 44512011.

It is an arithmetic number, because the mean of its divisors is an integer number (44512011).

Almost surely, 2^89024021 is an apocalyptic number.

It is an amenable number.

89024021 is a deficient number, since it is larger than the sum of its proper divisors (1).

89024021 is an equidigital number, since it uses as much as digits as its factorization.

89024021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 89024021 is about 9435.2541566192. The cubic root of 89024021 is about 446.5146736014.

The spelling of 89024021 in words is "eighty-nine million, twenty-four thousand, twenty-one".