12973967 has 2 divisors, whose sum is σ = 12973968. Its totient is φ = 12973966.

The previous prime is 12973951. The next prime is 12973969. The reversal of 12973967 is 76937921.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12973967 - 2⁴ = 12973951 is a prime.

Together with 12973969, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12973969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6486983 + 6486984.

It is an arithmetic number, because the mean of its divisors is an integer number (6486984).

Almost surely, 2^12973967 is an apocalyptic number.

12973967 is a deficient number, since it is larger than the sum of its proper divisors (1).

12973967 is an equidigital number, since it uses as much as digits as its factorization.

12973967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 142884, while the sum is 44.

The square root of 12973967 is about 3601.9393387452. The cubic root of 12973967 is about 234.9764092812.

The spelling of 12973967 in words is "twelve million, nine hundred seventy-three thousand, nine hundred sixty-seven".