4247407 has 2 divisors, whose sum is σ = 4247408. Its totient is φ = 4247406.

The previous prime is 4247389. The next prime is 4247417. The reversal of 4247407 is 7047424.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4247407 is a prime.

It is a Chen prime.

It is equal to p₂₉₉₄₀₄ and since 4247407 and 299404 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4247417) 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, 2123703 + 2123704.

It is an arithmetic number, because the mean of its divisors is an integer number (2123704).

Almost surely, 2^4247407 is an apocalyptic number.

4247407 is a deficient number, since it is larger than the sum of its proper divisors (1).

4247407 is an equidigital number, since it uses as much as digits as its factorization.

4247407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6272, while the sum is 28.

The square root of 4247407 is about 2060.9238219789. The cubic root of 4247407 is about 161.9476409565.

The spelling of 4247407 in words is "four million, two hundred forty-seven thousand, four hundred seven".