9938867 has 2 divisors, whose sum is σ = 9938868. Its totient is φ = 9938866.

The previous prime is 9938861. The next prime is 9938869. The reversal of 9938867 is 7688399.

It is a strong prime.

It is an emirp because it is prime and its reverse (7688399) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9938867 - 2⁸ = 9938611 is a prime.

Together with 9938869, 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 (9938861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4969433 + 4969434.

It is an arithmetic number, because the mean of its divisors is an integer number (4969434).

Almost surely, 2^9938867 is an apocalyptic number.

9938867 is a deficient number, since it is larger than the sum of its proper divisors (1).

9938867 is an equidigital number, since it uses as much as digits as its factorization.

9938867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 50.

The square root of 9938867 is about 3152.5968660772. The cubic root of 9938867 is about 215.0035478052.

The spelling of 9938867 in words is "nine million, nine hundred thirty-eight thousand, eight hundred sixty-seven".