9812947 has 2 divisors, whose sum is σ = 9812948. Its totient is φ = 9812946.

The previous prime is 9812941. The next prime is 9812951. The reversal of 9812947 is 7492189.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9812947 - 2¹⁹ = 9288659 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (9812941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4906473 + 4906474.

It is an arithmetic number, because the mean of its divisors is an integer number (4906474).

Almost surely, 2^9812947 is an apocalyptic number.

9812947 is a deficient number, since it is larger than the sum of its proper divisors (1).

9812947 is an equidigital number, since it uses as much as digits as its factorization.

9812947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 40.

The square root of 9812947 is about 3132.5623696903. The cubic root of 9812947 is about 214.0916936084.

The spelling of 9812947 in words is "nine million, eight hundred twelve thousand, nine hundred forty-seven".