303968947 has 2 divisors, whose sum is σ = 303968948. Its totient is φ = 303968946.

The previous prime is 303968941. The next prime is 303969019. The reversal of 303968947 is 749869303.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-303968947 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 303968947.

It is not a weakly prime, because it can be changed into another prime (303968941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151984473 + 151984474.

It is an arithmetic number, because the mean of its divisors is an integer number (151984474).

Almost surely, 2^303968947 is an apocalyptic number.

303968947 is a deficient number, since it is larger than the sum of its proper divisors (1).

303968947 is an equidigital number, since it uses as much as digits as its factorization.

303968947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 979776, while the sum is 49.

The square root of 303968947 is about 17434.7052455727. The cubic root of 303968947 is about 672.3721859700.

The spelling of 303968947 in words is "three hundred three million, nine hundred sixty-eight thousand, nine hundred forty-seven".