9681247 has 4 divisors (see below), whose sum is σ = 9688896. Its totient is φ = 9673600.

The previous prime is 9681233. The next prime is 9681257. The reversal of 9681247 is 7421869.

9681247 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 9681247 - 2¹¹ = 9679199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9681227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1423 + ... + 4624.

It is an arithmetic number, because the mean of its divisors is an integer number (2422224).

Almost surely, 2^9681247 is an apocalyptic number.

9681247 is a deficient number, since it is larger than the sum of its proper divisors (7649).

9681247 is a wasteful number, since it uses less digits than its factorization.

9681247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7648.

The product of its digits is 24192, while the sum is 37.

The square root of 9681247 is about 3111.4702312572. The cubic root of 9681247 is about 213.1295985168.

The spelling of 9681247 in words is "nine million, six hundred eighty-one thousand, two hundred forty-seven".