9708731 has 2 divisors, whose sum is σ = 9708732. Its totient is φ = 9708730.

The previous prime is 9708719. The next prime is 9708749. The reversal of 9708731 is 1378079.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9708731 - 2¹⁸ = 9446587 is a prime.

It is a super-2 number, since 2×9708731² = 188518915260722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 9708691 and 9708700.

It is not a weakly prime, because it can be changed into another prime (9708701) 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, 4854365 + 4854366.

It is an arithmetic number, because the mean of its divisors is an integer number (4854366).

Almost surely, 2^9708731 is an apocalyptic number.

9708731 is a deficient number, since it is larger than the sum of its proper divisors (1).

9708731 is an equidigital number, since it uses as much as digits as its factorization.

9708731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 9708731 is about 3115.8836627833. The cubic root of 9708731 is about 213.3310918276.

The spelling of 9708731 in words is "nine million, seven hundred eight thousand, seven hundred thirty-one".