9967123 has 2 divisors, whose sum is σ = 9967124. Its totient is φ = 9967122.

The previous prime is 9967103. The next prime is 9967129. The reversal of 9967123 is 3217699.

It is a strong prime.

It is an emirp because it is prime and its reverse (3217699) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9967123 is a prime.

It is not a weakly prime, because it can be changed into another prime (9967129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4983561 + 4983562.

It is an arithmetic number, because the mean of its divisors is an integer number (4983562).

Almost surely, 2^9967123 is an apocalyptic number.

9967123 is a deficient number, since it is larger than the sum of its proper divisors (1).

9967123 is an equidigital number, since it uses as much as digits as its factorization.

9967123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20412, while the sum is 37.

The square root of 9967123 is about 3157.0750703776. The cubic root of 9967123 is about 215.2071052849.

The spelling of 9967123 in words is "nine million, nine hundred sixty-seven thousand, one hundred twenty-three".