12213584 has 10 divisors (see below), whose sum is σ = 23663850. Its totient is φ = 6106784.

The previous prime is 12213583. The next prime is 12213587. The reversal of 12213584 is 48531221.

12213584 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 11751184 + 462400 = 3428^2 + 680^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12213583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 381659 + ... + 381690.

It is an arithmetic number, because the mean of its divisors is an integer number (2366385).

Almost surely, 2^12213584 is an apocalyptic number.

It is an amenable number.

12213584 is a deficient number, since it is larger than the sum of its proper divisors (11450266).

12213584 is an equidigital number, since it uses as much as digits as its factorization.

12213584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763357 (or 763351 counting only the distinct ones).

The product of its digits is 1920, while the sum is 26.

The square root of 12213584 is about 3494.7938422745. The cubic root of 12213584 is about 230.2931611457.

The spelling of 12213584 in words is "twelve million, two hundred thirteen thousand, five hundred eighty-four".