304364939 has 2 divisors, whose sum is σ = 304364940. Its totient is φ = 304364938.

The previous prime is 304364927. The next prime is 304364941. The reversal of 304364939 is 939463403.

It is a strong prime.

It is an emirp because it is prime and its reverse (939463403) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-304364939 is a prime.

It is a Sophie Germain prime.

Together with 304364941, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 304364896 and 304364905.

It is not a weakly prime, because it can be changed into another prime (304364969) 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, 152182469 + 152182470.

It is an arithmetic number, because the mean of its divisors is an integer number (152182470).

Almost surely, 2^304364939 is an apocalyptic number.

304364939 is a deficient number, since it is larger than the sum of its proper divisors (1).

304364939 is an equidigital number, since it uses as much as digits as its factorization.

304364939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209952, while the sum is 41.

The square root of 304364939 is about 17446.0579788100. The cubic root of 304364939 is about 672.6640342801.

The spelling of 304364939 in words is "three hundred four million, three hundred sixty-four thousand, nine hundred thirty-nine".