8244989 has 2 divisors, whose sum is σ = 8244990. Its totient is φ = 8244988.

The previous prime is 8244959. The next prime is 8244997. The reversal of 8244989 is 9894428.

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., 7812025 + 432964 = 2795^2 + 658^2 .

It is a cyclic number.

It is not a de Polignac number, because 8244989 - 2¹⁶ = 8179453 is a prime.

It is a super-2 number, since 2×8244989² = 135959687220242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8244959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4122494 + 4122495.

It is an arithmetic number, because the mean of its divisors is an integer number (4122495).

Almost surely, 2^8244989 is an apocalyptic number.

It is an amenable number.

8244989 is a deficient number, since it is larger than the sum of its proper divisors (1).

8244989 is an equidigital number, since it uses as much as digits as its factorization.

8244989 is an evil number, because the sum of its binary digits is even.

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

The square root of 8244989 is about 2871.4088876369. The cubic root of 8244989 is about 202.0210823338.

The spelling of 8244989 in words is "eight million, two hundred forty-four thousand, nine hundred eighty-nine".