8244409 has 2 divisors, whose sum is σ = 8244410. Its totient is φ = 8244408.

The previous prime is 8244407. The next prime is 8244463. The reversal of 8244409 is 9044428.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5076009 + 3168400 = 2253^2 + 1780^2 .

It is a cyclic number.

It is not a de Polignac number, because 8244409 - 2¹ = 8244407 is a prime.

Together with 8244407, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (8244407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4122204 + 4122205.

It is an arithmetic number, because the mean of its divisors is an integer number (4122205).

Almost surely, 2^8244409 is an apocalyptic number.

It is an amenable number.

8244409 is a deficient number, since it is larger than the sum of its proper divisors (1).

8244409 is an equidigital number, since it uses as much as digits as its factorization.

8244409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 8244409 is about 2871.3078901434. The cubic root of 8244409 is about 202.0163451140.

The spelling of 8244409 in words is "eight million, two hundred forty-four thousand, four hundred nine".