12955487 has 2 divisors, whose sum is σ = 12955488. Its totient is φ = 12955486.

The previous prime is 12955477. The next prime is 12955517. The reversal of 12955487 is 78455921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12955487 - 2⁴ = 12955471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12955477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6477743 + 6477744.

It is an arithmetic number, because the mean of its divisors is an integer number (6477744).

Almost surely, 2^12955487 is an apocalyptic number.

12955487 is a deficient number, since it is larger than the sum of its proper divisors (1).

12955487 is an equidigital number, since it uses as much as digits as its factorization.

12955487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100800, while the sum is 41.

The square root of 12955487 is about 3599.3731398676. The cubic root of 12955487 is about 234.8647901849.

The spelling of 12955487 in words is "twelve million, nine hundred fifty-five thousand, four hundred eighty-seven".