9686867 has 2 divisors, whose sum is σ = 9686868. Its totient is φ = 9686866.

The previous prime is 9686851. The next prime is 9686869. The reversal of 9686867 is 7686869.

It is a strong prime.

It is an emirp because it is prime and its reverse (7686869) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9686867 - 2⁴ = 9686851 is a prime.

Together with 9686869, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9686869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4843433 + 4843434.

It is an arithmetic number, because the mean of its divisors is an integer number (4843434).

Almost surely, 2^9686867 is an apocalyptic number.

9686867 is a deficient number, since it is larger than the sum of its proper divisors (1).

9686867 is an equidigital number, since it uses as much as digits as its factorization.

9686867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 50.

The square root of 9686867 is about 3112.3732102690. The cubic root of 9686867 is about 213.1708313815.

The spelling of 9686867 in words is "nine million, six hundred eighty-six thousand, eight hundred sixty-seven".