12892387 has 2 divisors, whose sum is σ = 12892388. Its totient is φ = 12892386.

The previous prime is 12892381. The next prime is 12892403. The reversal of 12892387 is 78329821.

12892387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12892387 - 2³ = 12892379 is a prime.

It is not a weakly prime, because it can be changed into another prime (12892381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6446193 + 6446194.

It is an arithmetic number, because the mean of its divisors is an integer number (6446194).

Almost surely, 2^12892387 is an apocalyptic number.

12892387 is a deficient number, since it is larger than the sum of its proper divisors (1).

12892387 is an equidigital number, since it uses as much as digits as its factorization.

12892387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 40.

The square root of 12892387 is about 3590.5970255655. The cubic root of 12892387 is about 234.4828646499.

The spelling of 12892387 in words is "twelve million, eight hundred ninety-two thousand, three hundred eighty-seven".