12932891 has 2 divisors, whose sum is σ = 12932892. Its totient is φ = 12932890.

The previous prime is 12932879. The next prime is 12932897. The reversal of 12932891 is 19823921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12932891 - 2¹⁴ = 12916507 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12932897) 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, 6466445 + 6466446.

It is an arithmetic number, because the mean of its divisors is an integer number (6466446).

Almost surely, 2^12932891 is an apocalyptic number.

12932891 is a deficient number, since it is larger than the sum of its proper divisors (1).

12932891 is an equidigital number, since it uses as much as digits as its factorization.

12932891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 35.

The square root of 12932891 is about 3596.2328901227. The cubic root of 12932891 is about 234.7281661389.

The spelling of 12932891 in words is "twelve million, nine hundred thirty-two thousand, eight hundred ninety-one".