89106289 has 2 divisors, whose sum is σ = 89106290. Its totient is φ = 89106288.

The previous prime is 89106287. The next prime is 89106361. The reversal of 89106289 is 98260198.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54390625 + 34715664 = 7375^2 + 5892^2 .

It is a cyclic number.

It is not a de Polignac number, because 89106289 - 2¹ = 89106287 is a prime.

Together with 89106287, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (89106287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44553144 + 44553145.

It is an arithmetic number, because the mean of its divisors is an integer number (44553145).

Almost surely, 2^89106289 is an apocalyptic number.

It is an amenable number.

89106289 is a deficient number, since it is larger than the sum of its proper divisors (1).

89106289 is an equidigital number, since it uses as much as digits as its factorization.

89106289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 89106289 is about 9439.6127568879. The cubic root of 89106289 is about 446.6521741665.

The spelling of 89106289 in words is "eighty-nine million, one hundred six thousand, two hundred eighty-nine".