9687647 has 2 divisors, whose sum is σ = 9687648. Its totient is φ = 9687646.

The previous prime is 9687641. The next prime is 9687661. The reversal of 9687647 is 7467869.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9687647 - 2⁶ = 9687583 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 (9687641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4843823 + 4843824.

It is an arithmetic number, because the mean of its divisors is an integer number (4843824).

Almost surely, 2^9687647 is an apocalyptic number.

9687647 is a deficient number, since it is larger than the sum of its proper divisors (1).

9687647 is an equidigital number, since it uses as much as digits as its factorization.

9687647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 508032, while the sum is 47.

The square root of 9687647 is about 3112.4985140559. The cubic root of 9687647 is about 213.1765528319.

The spelling of 9687647 in words is "nine million, six hundred eighty-seven thousand, six hundred forty-seven".