4247687 has 2 divisors, whose sum is σ = 4247688. Its totient is φ = 4247686.

The previous prime is 4247629. The next prime is 4247689. The reversal of 4247687 is 7867424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4247687 - 2⁶ = 4247623 is a prime.

Together with 4247689, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4247687.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4247689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2123843 + 2123844.

It is an arithmetic number, because the mean of its divisors is an integer number (2123844).

Almost surely, 2^4247687 is an apocalyptic number.

4247687 is a deficient number, since it is larger than the sum of its proper divisors (1).

4247687 is an equidigital number, since it uses as much as digits as its factorization.

4247687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75264, while the sum is 38.

The square root of 4247687 is about 2060.9917515604. The cubic root of 4247687 is about 161.9511995468.

The spelling of 4247687 in words is "four million, two hundred forty-seven thousand, six hundred eighty-seven".