9712811 has 2 divisors, whose sum is σ = 9712812. Its totient is φ = 9712810.

The previous prime is 9712799. The next prime is 9712817. The reversal of 9712811 is 1182179.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9712811 - 2¹⁰ = 9711787 is a prime.

It is not a weakly prime, because it can be changed into another prime (9712817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4856405 + 4856406.

It is an arithmetic number, because the mean of its divisors is an integer number (4856406).

Almost surely, 2^9712811 is an apocalyptic number.

9712811 is a deficient number, since it is larger than the sum of its proper divisors (1).

9712811 is an equidigital number, since it uses as much as digits as its factorization.

9712811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008, while the sum is 29.

The square root of 9712811 is about 3116.5383039520. The cubic root of 9712811 is about 213.3609710829.

The spelling of 9712811 in words is "nine million, seven hundred twelve thousand, eight hundred eleven".