12682621 has 12 divisors (see below), whose sum is σ = 15069888. Its totient is φ = 10637592.

The previous prime is 12682619. The next prime is 12682639. The reversal of 12682621 is 12628621.

12682621 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 12682621 - 2¹ = 12682619 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12682621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12682651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 451 + ... + 5056.

It is an arithmetic number, because the mean of its divisors is an integer number (1255824).

Almost surely, 2^12682621 is an apocalyptic number.

It is an amenable number.

12682621 is a deficient number, since it is larger than the sum of its proper divisors (2387267).

12682621 is an equidigital number, since it uses as much as digits as its factorization.

12682621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5568 (or 5561 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The square root of 12682621 is about 3561.2667690023. The cubic root of 12682621 is about 233.2041840851.

The spelling of 12682621 in words is "twelve million, six hundred eighty-two thousand, six hundred twenty-one".