12304821 has 8 divisors (see below), whose sum is σ = 17371584. Its totient is φ = 7720640.

The previous prime is 12304819. The next prime is 12304829. The reversal of 12304821 is 12840321.

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 12304821 - 2¹ = 12304819 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12304829) 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, 120585 + ... + 120686.

It is an arithmetic number, because the mean of its divisors is an integer number (2171448).

Almost surely, 2^12304821 is an apocalyptic number.

It is an amenable number.

12304821 is a deficient number, since it is larger than the sum of its proper divisors (5066763).

12304821 is a wasteful number, since it uses less digits than its factorization.

12304821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241291.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 12304821 is about 3507.8228290494. The cubic root of 12304821 is about 230.8651787257.

The spelling of 12304821 in words is "twelve million, three hundred four thousand, eight hundred twenty-one".