2544247 has 2 divisors, whose sum is σ = 2544248. Its totient is φ = 2544246.

The previous prime is 2544239. The next prime is 2544253. The reversal of 2544247 is 7424452.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2544247 - 2³ = 2544239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2544287) 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, 1272123 + 1272124.

It is an arithmetic number, because the mean of its divisors is an integer number (1272124).

2^2544247 is an apocalyptic number.

2544247 is a deficient number, since it is larger than the sum of its proper divisors (1).

2544247 is an equidigital number, since it uses as much as digits as its factorization.

2544247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8960, while the sum is 28.

The square root of 2544247 is about 1595.0695909583. The cubic root of 2544247 is about 136.5169018416.

Adding to 2544247 its reverse (7424452), we get a palindrome (9968699).

The spelling of 2544247 in words is "two million, five hundred forty-four thousand, two hundred forty-seven".