9678247 has 2 divisors, whose sum is σ = 9678248. Its totient is φ = 9678246.

The previous prime is 9678241. The next prime is 9678259. The reversal of 9678247 is 7428769.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9678247 - 2¹⁵ = 9645479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9678241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4839123 + 4839124.

It is an arithmetic number, because the mean of its divisors is an integer number (4839124).

Almost surely, 2^9678247 is an apocalyptic number.

9678247 is a deficient number, since it is larger than the sum of its proper divisors (1).

9678247 is an equidigital number, since it uses as much as digits as its factorization.

9678247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 43.

The square root of 9678247 is about 3110.9881066954. The cubic root of 9678247 is about 213.1075815579.

The spelling of 9678247 in words is "nine million, six hundred seventy-eight thousand, two hundred forty-seven".