9776947 has 2 divisors, whose sum is σ = 9776948. Its totient is φ = 9776946.

The previous prime is 9776941. The next prime is 9776951. The reversal of 9776947 is 7496779.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9776947 - 2³ = 9776939 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9776947.

It is not a weakly prime, because it can be changed into another prime (9776941) 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, 4888473 + 4888474.

It is an arithmetic number, because the mean of its divisors is an integer number (4888474).

Almost surely, 2^9776947 is an apocalyptic number.

9776947 is a deficient number, since it is larger than the sum of its proper divisors (1).

9776947 is an equidigital number, since it uses as much as digits as its factorization.

9776947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 666792, while the sum is 49.

The square root of 9776947 is about 3126.8109952474. The cubic root of 9776947 is about 213.8295655822.

The spelling of 9776947 in words is "nine million, seven hundred seventy-six thousand, nine hundred forty-seven".