9687449 has 2 divisors, whose sum is σ = 9687450. Its totient is φ = 9687448.

The previous prime is 9687443. The next prime is 9687493. The reversal of 9687449 is 9447869.

9687449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8323225 + 1364224 = 2885^2 + 1168^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9687449 is a prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (9687443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4843724 + 4843725.

It is an arithmetic number, because the mean of its divisors is an integer number (4843725).

Almost surely, 2^9687449 is an apocalyptic number.

It is an amenable number.

9687449 is a deficient number, since it is larger than the sum of its proper divisors (1).

9687449 is an equidigital number, since it uses as much as digits as its factorization.

9687449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 47.

The square root of 9687449 is about 3112.4667066492. The cubic root of 9687449 is about 213.1751004928.

The spelling of 9687449 in words is "nine million, six hundred eighty-seven thousand, four hundred forty-nine".