9729497 has 2 divisors, whose sum is σ = 9729498. Its totient is φ = 9729496.

The previous prime is 9729493. The next prime is 9729541. The reversal of 9729497 is 7949279.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6255001 + 3474496 = 2501^2 + 1864^2 .

It is a cyclic number.

It is not a de Polignac number, because 9729497 - 2² = 9729493 is a prime.

It is a super-2 number, since 2×9729497² = 189326223746018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9729493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4864748 + 4864749.

It is an arithmetic number, because the mean of its divisors is an integer number (4864749).

Almost surely, 2^9729497 is an apocalyptic number.

It is an amenable number.

9729497 is a deficient number, since it is larger than the sum of its proper divisors (1).

9729497 is an equidigital number, since it uses as much as digits as its factorization.

9729497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 285768, while the sum is 47.

The square root of 9729497 is about 3119.2141638560. The cubic root of 9729497 is about 213.4830814383.

The spelling of 9729497 in words is "nine million, seven hundred twenty-nine thousand, four hundred ninety-seven".