12894487 has 2 divisors, whose sum is σ = 12894488. Its totient is φ = 12894486.

The previous prime is 12894457. The next prime is 12894499. The reversal of 12894487 is 78449821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12894487 - 2⁷ = 12894359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12894457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6447243 + 6447244.

It is an arithmetic number, because the mean of its divisors is an integer number (6447244).

Almost surely, 2^12894487 is an apocalyptic number.

12894487 is a deficient number, since it is larger than the sum of its proper divisors (1).

12894487 is an equidigital number, since it uses as much as digits as its factorization.

12894487 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 12894487 is about 3590.8894441350. The cubic root of 12894487 is about 234.4955953486.

It can be divided in two parts, 1289 and 4487, that added together give a square (5776 = 76²).

The spelling of 12894487 in words is "twelve million, eight hundred ninety-four thousand, four hundred eighty-seven".