9725449 has 2 divisors, whose sum is σ = 9725450. Its totient is φ = 9725448.

The previous prime is 9725437. The next prime is 9725459. The reversal of 9725449 is 9445279.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6943225 + 2782224 = 2635^2 + 1668^2 .

It is a cyclic number.

It is not a de Polignac number, because 9725449 - 2⁹ = 9724937 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9725459) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4862724 + 4862725.

It is an arithmetic number, because the mean of its divisors is an integer number (4862725).

Almost surely, 2^9725449 is an apocalyptic number.

It is an amenable number.

9725449 is a deficient number, since it is larger than the sum of its proper divisors (1).

9725449 is an equidigital number, since it uses as much as digits as its factorization.

9725449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 40.

The square root of 9725449 is about 3118.5652149667. The cubic root of 9725449 is about 213.4534704731.

The spelling of 9725449 in words is "nine million, seven hundred twenty-five thousand, four hundred forty-nine".