4307939 has 2 divisors, whose sum is σ = 4307940. Its totient is φ = 4307938.

The previous prime is 4307909. The next prime is 4307957. The reversal of 4307939 is 9397034.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4307939 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 4307899 and 4307908.

It is not a weakly prime, because it can be changed into another prime (4307909) 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, 2153969 + 2153970.

It is an arithmetic number, because the mean of its divisors is an integer number (2153970).

Almost surely, 2^4307939 is an apocalyptic number.

4307939 is a deficient number, since it is larger than the sum of its proper divisors (1).

4307939 is an equidigital number, since it uses as much as digits as its factorization.

4307939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 4307939 is about 2075.5575154642. The cubic root of 4307939 is about 162.7133481724.

The spelling of 4307939 in words is "four million, three hundred seven thousand, nine hundred thirty-nine".