12858087 has 16 divisors (see below), whose sum is σ = 19307520. Its totient is φ = 7540800.

The previous prime is 12858077. The next prime is 12858091. The reversal of 12858087 is 78085821.

12858087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12858087 - 2¹² = 12853991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12858017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5262 + ... + 7307.

It is an arithmetic number, because the mean of its divisors is an integer number (1206720).

Almost surely, 2^12858087 is an apocalyptic number.

12858087 is a deficient number, since it is larger than the sum of its proper divisors (6449433).

12858087 is a wasteful number, since it uses less digits than its factorization.

12858087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12614.

The product of its (nonzero) digits is 35840, while the sum is 39.

The square root of 12858087 is about 3585.8174800176. The cubic root of 12858087 is about 234.2747339299.

The spelling of 12858087 in words is "twelve million, eight hundred fifty-eight thousand, eighty-seven".