4247071 has 2 divisors, whose sum is σ = 4247072. Its totient is φ = 4247070.

The previous prime is 4247069. The next prime is 4247081. The reversal of 4247071 is 1707424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4247071 - 2¹ = 4247069 is a prime.

It is a super-2 number, since 2×4247071² = 36075224158082, which contains 22 as substring.

Together with 4247069, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4247011) 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, 2123535 + 2123536.

It is an arithmetic number, because the mean of its divisors is an integer number (2123536).

Almost surely, 2^4247071 is an apocalyptic number.

4247071 is a deficient number, since it is larger than the sum of its proper divisors (1).

4247071 is an equidigital number, since it uses as much as digits as its factorization.

4247071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 4247071 is about 2060.8423035254. The cubic root of 4247071 is about 161.9433704418.

The spelling of 4247071 in words is "four million, two hundred forty-seven thousand, seventy-one".