9278954947 has 2 divisors, whose sum is σ = 9278954948. Its totient is φ = 9278954946.

The previous prime is 9278954891. The next prime is 9278954987. The reversal of 9278954947 is 7494598729.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9278954947 - 2⁷ = 9278954819 is a prime.

It is not a weakly prime, because it can be changed into another prime (9278954987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4639477473 + 4639477474.

It is an arithmetic number, because the mean of its divisors is an integer number (4639477474).

Almost surely, 2^9278954947 is an apocalyptic number.

9278954947 is a deficient number, since it is larger than the sum of its proper divisors (1).

9278954947 is an equidigital number, since it uses as much as digits as its factorization.

9278954947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45722880, while the sum is 64.

The square root of 9278954947 is about 96327.3322946296. The cubic root of 9278954947 is about 2101.3562627346.

The spelling of 9278954947 in words is "nine billion, two hundred seventy-eight million, nine hundred fifty-four thousand, nine hundred forty-seven".