12215704 has 16 divisors (see below), whose sum is σ = 23463720. Its totient is φ = 5958720.

The previous prime is 12215701. The next prime is 12215713. The reversal of 12215704 is 40751221.

It is a happy number.

12215704 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12215701) 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, 18294 + ... + 18949.

Almost surely, 2^12215704 is an apocalyptic number.

It is an amenable number.

12215704 is a deficient number, since it is larger than the sum of its proper divisors (11248016).

12215704 is a wasteful number, since it uses less digits than its factorization.

12215704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37290 (or 37286 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 12215704 is about 3495.0971374198. The cubic root of 12215704 is about 230.3064849240.

Adding to 12215704 its reverse (40751221), we get a palindrome (52966925).

The spelling of 12215704 in words is "twelve million, two hundred fifteen thousand, seven hundred four".