12872423 has 2 divisors, whose sum is σ = 12872424. Its totient is φ = 12872422.

The previous prime is 12872413. The next prime is 12872429. The reversal of 12872423 is 32427821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12872423 - 2¹⁰ = 12871399 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12872429) 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, 6436211 + 6436212.

It is an arithmetic number, because the mean of its divisors is an integer number (6436212).

Almost surely, 2^12872423 is an apocalyptic number.

12872423 is a deficient number, since it is larger than the sum of its proper divisors (1).

12872423 is an equidigital number, since it uses as much as digits as its factorization.

12872423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 29.

The square root of 12872423 is about 3587.8159094357. The cubic root of 12872423 is about 234.3617690427.

The spelling of 12872423 in words is "twelve million, eight hundred seventy-two thousand, four hundred twenty-three".