12984487 has 2 divisors, whose sum is σ = 12984488. Its totient is φ = 12984486.

The previous prime is 12984473. The next prime is 12984493. The reversal of 12984487 is 78448921.

It is a strong prime.

It is an emirp because it is prime and its reverse (78448921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12984487 - 2⁷ = 12984359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12984427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6492243 + 6492244.

It is an arithmetic number, because the mean of its divisors is an integer number (6492244).

Almost surely, 2^12984487 is an apocalyptic number.

12984487 is a deficient number, since it is larger than the sum of its proper divisors (1).

12984487 is an equidigital number, since it uses as much as digits as its factorization.

12984487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 43.

The square root of 12984487 is about 3603.3993672642. The cubic root of 12984487 is about 235.0399026855.

The spelling of 12984487 in words is "twelve million, nine hundred eighty-four thousand, four hundred eighty-seven".