9967247 has 4 divisors (see below), whose sum is σ = 9976320. Its totient is φ = 9958176.

The previous prime is 9967189. The next prime is 9967249. The reversal of 9967247 is 7427699.

9967247 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 9967247 - 2⁶ = 9967183 is a prime.

It is a Duffinian number.

Its product of digits (190512) is a multiple of the sum of its prime divisors (9072).

It is a junction number, because it is equal to n+sod(n) for n = 9967198 and 9967207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9967249) 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 in 3 ways as a sum of consecutive naturals, for example, 2618 + ... + 5175.

It is an arithmetic number, because the mean of its divisors is an integer number (2494080).

Almost surely, 2^9967247 is an apocalyptic number.

9967247 is a deficient number, since it is larger than the sum of its proper divisors (9073).

9967247 is a wasteful number, since it uses less digits than its factorization.

9967247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9072.

The product of its digits is 190512, while the sum is 44.

The square root of 9967247 is about 3157.0947087473. The cubic root of 9967247 is about 215.2079977381.

The spelling of 9967247 in words is "nine million, nine hundred sixty-seven thousand, two hundred forty-seven".