9964247 has 2 divisors, whose sum is σ = 9964248. Its totient is φ = 9964246.

The previous prime is 9964217. The next prime is 9964259. The reversal of 9964247 is 7424699.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9964247 - 2⁶ = 9964183 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9964217) 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, 4982123 + 4982124.

It is an arithmetic number, because the mean of its divisors is an integer number (4982124).

Almost surely, 2^9964247 is an apocalyptic number.

9964247 is a deficient number, since it is larger than the sum of its proper divisors (1).

9964247 is an equidigital number, since it uses as much as digits as its factorization.

9964247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 41.

The square root of 9964247 is about 3156.6195526227. The cubic root of 9964247 is about 215.1864040530.

It can be divided in two parts, 99 and 64247, that added together give a palindrome (64346).

The spelling of 9964247 in words is "nine million, nine hundred sixty-four thousand, two hundred forty-seven".