8644499 has 2 divisors, whose sum is σ = 8644500. Its totient is φ = 8644498.

The previous prime is 8644477. The next prime is 8644501. The reversal of 8644499 is 9944468.

It is a happy number.

8644499 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8644499 - 2⁸ = 8644243 is a prime.

It is a super-2 number, since 2×8644499² = 149454725922002, which contains 22 as substring.

Together with 8644501, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8644439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4322249 + 4322250.

It is an arithmetic number, because the mean of its divisors is an integer number (4322250).

Almost surely, 2^8644499 is an apocalyptic number.

8644499 is a deficient number, since it is larger than the sum of its proper divisors (1).

8644499 is an equidigital number, since it uses as much as digits as its factorization.

8644499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 44.

The square root of 8644499 is about 2940.1528871812. The cubic root of 8644499 is about 205.2327240033.

The spelling of 8644499 in words is "eight million, six hundred forty-four thousand, four hundred ninety-nine".