12904621 has 8 divisors (see below), whose sum is σ = 13083840. Its totient is φ = 12726912.

The previous prime is 12904613. The next prime is 12904631. The reversal of 12904621 is 12640921.

12904621 is digitally balanced in base 2, 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 a cyclic number.

It is not a de Polignac number, because 12904621 - 2³ = 12904613 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 (12904631) 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, 36381 + ... + 36733.

It is an arithmetic number, because the mean of its divisors is an integer number (1635480).

Almost surely, 2^12904621 is an apocalyptic number.

It is an amenable number.

12904621 is a deficient number, since it is larger than the sum of its proper divisors (179219).

12904621 is a wasteful number, since it uses less digits than its factorization.

12904621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 12904621 is about 3592.3002380091. The cubic root of 12904621 is about 234.5570106415.

The spelling of 12904621 in words is "twelve million, nine hundred four thousand, six hundred twenty-one".