12587983 has 2 divisors, whose sum is σ = 12587984. Its totient is φ = 12587982.

The previous prime is 12587951. The next prime is 12587989. The reversal of 12587983 is 38978521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12587983 - 2⁵ = 12587951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12587989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6293991 + 6293992.

It is an arithmetic number, because the mean of its divisors is an integer number (6293992).

Almost surely, 2^12587983 is an apocalyptic number.

12587983 is a deficient number, since it is larger than the sum of its proper divisors (1).

12587983 is an equidigital number, since it uses as much as digits as its factorization.

12587983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 43.

The square root of 12587983 is about 3547.9547629585. The cubic root of 12587983 is about 232.6226770017.

The spelling of 12587983 in words is "twelve million, five hundred eighty-seven thousand, nine hundred eighty-three".