12927931 has 2 divisors, whose sum is σ = 12927932. Its totient is φ = 12927930.

The previous prime is 12927883. The next prime is 12927947. The reversal of 12927931 is 13972921.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12927931 - 2¹¹ = 12925883 is a prime.

It is a super-2 number, since 2×12927931² = 334262799881522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12927331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6463965 + 6463966.

It is an arithmetic number, because the mean of its divisors is an integer number (6463966).

Almost surely, 2^12927931 is an apocalyptic number.

12927931 is a deficient number, since it is larger than the sum of its proper divisors (1).

12927931 is an equidigital number, since it uses as much as digits as its factorization.

12927931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6804, while the sum is 34.

The square root of 12927931 is about 3595.5432134797. The cubic root of 12927931 is about 234.6981547884.

The spelling of 12927931 in words is "twelve million, nine hundred twenty-seven thousand, nine hundred thirty-one".