89844889 has 2 divisors, whose sum is σ = 89844890. Its totient is φ = 89844888.

The previous prime is 89844869. The next prime is 89844907. The reversal of 89844889 is 98844898.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72539289 + 17305600 = 8517^2 + 4160^2 .

It is a cyclic number.

It is not a de Polignac number, because 89844889 - 2¹³ = 89836697 is a prime.

It is not a weakly prime, because it can be changed into another prime (89844809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44922444 + 44922445.

It is an arithmetic number, because the mean of its divisors is an integer number (44922445).

Almost surely, 2^89844889 is an apocalyptic number.

It is an amenable number.

89844889 is a deficient number, since it is larger than the sum of its proper divisors (1).

89844889 is an equidigital number, since it uses as much as digits as its factorization.

89844889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5308416, while the sum is 58.

The square root of 89844889 is about 9478.6543876227. The cubic root of 89844889 is about 447.8828765491.

Subtracting 89844889 from its reverse (98844898), we obtain a palindrome (9000009).

The spelling of 89844889 in words is "eighty-nine million, eight hundred forty-four thousand, eight hundred eighty-nine".