4247459 has 2 divisors, whose sum is σ = 4247460. Its totient is φ = 4247458.

The previous prime is 4247449. The next prime is 4247461. The reversal of 4247459 is 9547424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4247459 - 2⁴ = 4247443 is a prime.

Together with 4247461, it forms a pair of twin primes.

It is a Chen prime.

It is a d-powerful number, because it can be written as 4 + 2²¹ + 4⁶ + 7⁶ + 4⁷ + 5⁹ + 9⁵ .

It is not a weakly prime, because it can be changed into another prime (4247429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2123729 + 2123730.

It is an arithmetic number, because the mean of its divisors is an integer number (2123730).

Almost surely, 2^4247459 is an apocalyptic number.

4247459 is a deficient number, since it is larger than the sum of its proper divisors (1).

4247459 is an equidigital number, since it uses as much as digits as its factorization.

4247459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 35.

The square root of 4247459 is about 2060.9364376419. The cubic root of 4247459 is about 161.9483018494.

Subtracting from 4247459 its sum of digits (35), we obtain a palindrome (4247424).

The spelling of 4247459 in words is "four million, two hundred forty-seven thousand, four hundred fifty-nine".