12084821 has 12 divisors (see below), whose sum is σ = 14670432. Its totient is φ = 9907128.

The previous prime is 12084811. The next prime is 12084833. The reversal of 12084821 is 12848021.

12084821 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 12084821 - 2²² = 7890517 is a prime.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12084811) 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, 4235 + ... + 6488.

It is an arithmetic number, because the mean of its divisors is an integer number (1222536).

Almost surely, 2^12084821 is an apocalyptic number.

It is an amenable number.

12084821 is a deficient number, since it is larger than the sum of its proper divisors (2585611).

12084821 is a wasteful number, since it uses less digits than its factorization.

12084821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10760 (or 10753 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 12084821 is about 3476.3229136546. The cubic root of 12084821 is about 229.4810036757.

The spelling of 12084821 in words is "twelve million, eighty-four thousand, eight hundred twenty-one".