12904211 has 4 divisors (see below), whose sum is σ = 13583400. Its totient is φ = 12225024.

The previous prime is 12904193. The next prime is 12904223. The reversal of 12904211 is 11240921.

12904211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12904211 - 2¹⁴ = 12887827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12904271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339566 + ... + 339603.

It is an arithmetic number, because the mean of its divisors is an integer number (3395850).

Almost surely, 2^12904211 is an apocalyptic number.

12904211 is the 1607-th centered decagonal number.

12904211 is a deficient number, since it is larger than the sum of its proper divisors (679189).

12904211 is an equidigital number, since it uses as much as digits as its factorization.

12904211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679188.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 12904211 is about 3592.2431710562. The cubic root of 12904211 is about 234.5545265341.

The spelling of 12904211 in words is "twelve million, nine hundred four thousand, two hundred eleven".