9419947 has 2 divisors, whose sum is σ = 9419948. Its totient is φ = 9419946.

The previous prime is 9419923. The next prime is 9419951. The reversal of 9419947 is 7499149.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9419947 is a prime.

It is not a weakly prime, because it can be changed into another prime (9419987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4709973 + 4709974.

It is an arithmetic number, because the mean of its divisors is an integer number (4709974).

Almost surely, 2^9419947 is an apocalyptic number.

9419947 is a deficient number, since it is larger than the sum of its proper divisors (1).

9419947 is an equidigital number, since it uses as much as digits as its factorization.

9419947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 43.

The square root of 9419947 is about 3069.1932164659. The cubic root of 9419947 is about 211.1946049447.

The spelling of 9419947 in words is "nine million, four hundred nineteen thousand, nine hundred forty-seven".