12632216 has 8 divisors (see below), whose sum is σ = 23685420. Its totient is φ = 6316104.

The previous prime is 12632201. The next prime is 12632219. The reversal of 12632216 is 61223621.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 12632191 and 12632200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12632219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 789506 + ... + 789521.

Almost surely, 2^12632216 is an apocalyptic number.

It is an amenable number.

12632216 is a deficient number, since it is larger than the sum of its proper divisors (11053204).

12632216 is a wasteful number, since it uses less digits than its factorization.

12632216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1579033 (or 1579029 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

The square root of 12632216 is about 3554.1828878098. The cubic root of 12632216 is about 232.8948299515.

Adding to 12632216 its reverse (61223621), we get a palindrome (73855837).

The spelling of 12632216 in words is "twelve million, six hundred thirty-two thousand, two hundred sixteen".