4247147 has 2 divisors, whose sum is σ = 4247148. Its totient is φ = 4247146.

The previous prime is 4247129. The next prime is 4247167. The reversal of 4247147 is 7417424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4247147 - 2¹² = 4243051 is a prime.

It is a super-3 number, since 3×4247147³ (a number of 21 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (4247107) 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, 2123573 + 2123574.

It is an arithmetic number, because the mean of its divisors is an integer number (2123574).

Almost surely, 2^4247147 is an apocalyptic number.

4247147 is a deficient number, since it is larger than the sum of its proper divisors (1).

4247147 is an equidigital number, since it uses as much as digits as its factorization.

4247147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6272, while the sum is 29.

The square root of 4247147 is about 2060.8607425054. The cubic root of 4247147 is about 161.9443364113.

The spelling of 4247147 in words is "four million, two hundred forty-seven thousand, one hundred forty-seven".