12958687 has 6 divisors (see below), whose sum is σ = 15074448. Its totient is φ = 11107404.

The previous prime is 12958633. The next prime is 12958691. The reversal of 12958687 is 78685921.

12958687 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12958687 - 2¹⁵ = 12925919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12958087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 132183 + ... + 132280.

It is an arithmetic number, because the mean of its divisors is an integer number (2512408).

Almost surely, 2^12958687 is an apocalyptic number.

12958687 is a deficient number, since it is larger than the sum of its proper divisors (2115761).

12958687 is an equidigital number, since it uses as much as digits as its factorization.

12958687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264477 (or 264470 counting only the distinct ones).

The product of its digits is 241920, while the sum is 46.

The square root of 12958687 is about 3599.8176342698. The cubic root of 12958687 is about 234.8841257621.

The spelling of 12958687 in words is "twelve million, nine hundred fifty-eight thousand, six hundred eighty-seven".