12408621 has 8 divisors (see below), whose sum is σ = 16564800. Its totient is φ = 8262432.

The previous prime is 12408619. The next prime is 12408631. The reversal of 12408621 is 12680421.

12408621 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12408621 - 2¹ = 12408619 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12408591 and 12408600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12408631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1176 + ... + 5118.

It is an arithmetic number, because the mean of its divisors is an integer number (2070600).

Almost surely, 2^12408621 is an apocalyptic number.

It is an amenable number.

12408621 is a deficient number, since it is larger than the sum of its proper divisors (4156179).

12408621 is a wasteful number, since it uses less digits than its factorization.

12408621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4995.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 12408621 is about 3522.5872593876. The cubic root of 12408621 is about 231.5125330056.

The spelling of 12408621 in words is "twelve million, four hundred eight thousand, six hundred twenty-one".