12997927 has 2 divisors, whose sum is σ = 12997928. Its totient is φ = 12997926.

The previous prime is 12997913. The next prime is 12997937. The reversal of 12997927 is 72979921.

12997927 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12997927 - 2¹⁵ = 12965159 is a prime.

It is a super-2 number, since 2×12997927² = 337892212594658, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12997937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6498963 + 6498964.

It is an arithmetic number, because the mean of its divisors is an integer number (6498964).

Almost surely, 2^12997927 is an apocalyptic number.

12997927 is the 2082-nd hex number.

12997927 is a deficient number, since it is larger than the sum of its proper divisors (1).

12997927 is an equidigital number, since it uses as much as digits as its factorization.

12997927 is an evil number, because the sum of its binary digits is even.

The product of its digits is 142884, while the sum is 46.

The square root of 12997927 is about 3605.2637906261. The cubic root of 12997927 is about 235.1209698595.

It can be divided in two parts, 12997 and 927, that added together give a square (13924 = 118²).

The spelling of 12997927 in words is "twelve million, nine hundred ninety-seven thousand, nine hundred twenty-seven".