12987411 has 4 divisors (see below), whose sum is σ = 17316552. Its totient is φ = 8658272.

The previous prime is 12987409. The next prime is 12987413. The reversal of 12987411 is 11478921.

12987411 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (12987409) and next prime (12987413).

It is a cyclic number.

It is not a de Polignac number, because 12987411 - 2¹ = 12987409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12987413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2164566 + ... + 2164571.

It is an arithmetic number, because the mean of its divisors is an integer number (4329138).

Almost surely, 2^12987411 is an apocalyptic number.

12987411 is a deficient number, since it is larger than the sum of its proper divisors (4329141).

12987411 is an equidigital number, since it uses as much as digits as its factorization.

12987411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4329140.

The product of its digits is 4032, while the sum is 33.

The square root of 12987411 is about 3603.8050724200. The cubic root of 12987411 is about 235.0575443809.

The spelling of 12987411 in words is "twelve million, nine hundred eighty-seven thousand, four hundred eleven".