9497681 has 2 divisors, whose sum is σ = 9497682. Its totient is φ = 9497680.

The previous prime is 9497669. The next prime is 9497693. The reversal of 9497681 is 1867949.

It is a balanced prime because it is at equal distance from previous prime (9497669) and next prime (9497693).

It can be written as a sum of positive squares in only one way, i.e., 9247681 + 250000 = 3041^2 + 500^2 .

It is an emirp because it is prime and its reverse (1867949) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9497681 is a prime.

It is a super-2 number, since 2×9497681² = 180411888755522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9497651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4748840 + 4748841.

It is an arithmetic number, because the mean of its divisors is an integer number (4748841).

Almost surely, 2^9497681 is an apocalyptic number.

It is an amenable number.

9497681 is a deficient number, since it is larger than the sum of its proper divisors (1).

9497681 is an equidigital number, since it uses as much as digits as its factorization.

9497681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 44.

The square root of 9497681 is about 3081.8307870485. The cubic root of 9497681 is about 211.7739446965.

The spelling of 9497681 in words is "nine million, four hundred ninety-seven thousand, six hundred eighty-one".