12484821 has 4 divisors (see below), whose sum is σ = 16646432. Its totient is φ = 8323212.

The previous prime is 12484807. The next prime is 12484861. The reversal of 12484821 is 12848421.

12484821 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12484821 - 2⁵ = 12484789 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 (12484861) 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, 2080801 + ... + 2080806.

It is an arithmetic number, because the mean of its divisors is an integer number (4161608).

Almost surely, 2^12484821 is an apocalyptic number.

It is an amenable number.

12484821 is a deficient number, since it is larger than the sum of its proper divisors (4161611).

12484821 is an equidigital number, since it uses as much as digits as its factorization.

12484821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4161610.

The product of its digits is 4096, while the sum is 30.

The square root of 12484821 is about 3533.3866190951. The cubic root of 12484821 is about 231.9854640615.

The spelling of 12484821 in words is "twelve million, four hundred eighty-four thousand, eight hundred twenty-one".