9689249 has 2 divisors, whose sum is σ = 9689250. Its totient is φ = 9689248.

The previous prime is 9689237. The next prime is 9689263. The reversal of 9689249 is 9429869.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9579025 + 110224 = 3095^2 + 332^2 .

It is an emirp because it is prime and its reverse (9429869) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9689249 is a prime.

It is not a weakly prime, because it can be changed into another prime (9689149) 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, 4844624 + 4844625.

It is an arithmetic number, because the mean of its divisors is an integer number (4844625).

Almost surely, 2^9689249 is an apocalyptic number.

It is an amenable number.

9689249 is a deficient number, since it is larger than the sum of its proper divisors (1).

9689249 is an equidigital number, since it uses as much as digits as its factorization.

9689249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 47.

The square root of 9689249 is about 3112.7558529380. The cubic root of 9689249 is about 213.1883028477.

The spelling of 9689249 in words is "nine million, six hundred eighty-nine thousand, two hundred forty-nine".