89244809 has 2 divisors, whose sum is σ = 89244810. Its totient is φ = 89244808.

The previous prime is 89244787. The next prime is 89244817. The reversal of 89244809 is 90844298.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55279225 + 33965584 = 7435^2 + 5828^2 .

It is a cyclic number.

It is not a de Polignac number, because 89244809 - 2⁸ = 89244553 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89244809.

It is not a weakly prime, because it can be changed into another prime (89244889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44622404 + 44622405.

It is an arithmetic number, because the mean of its divisors is an integer number (44622405).

Almost surely, 2^89244809 is an apocalyptic number.

It is an amenable number.

89244809 is a deficient number, since it is larger than the sum of its proper divisors (1).

89244809 is an equidigital number, since it uses as much as digits as its factorization.

89244809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 89244809 is about 9446.9470729967. The cubic root of 89244809 is about 446.8835017471.

The spelling of 89244809 in words is "eighty-nine million, two hundred forty-four thousand, eight hundred nine".