12623812 has 12 divisors (see below), whose sum is σ = 22153516. Its totient is φ = 6294240.

The previous prime is 12623797. The next prime is 12623813. The reversal of 12623812 is 21832621.

It can be written as a sum of positive squares in 2 ways, for example, as 8844676 + 3779136 = 2974^2 + 1944^2 .

It is a super-2 number, since 2×12623812² = 318721258822688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12623813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2739 + ... + 5722.

Almost surely, 2^12623812 is an apocalyptic number.

It is an amenable number.

12623812 is a deficient number, since it is larger than the sum of its proper divisors (9529704).

12623812 is a wasteful number, since it uses less digits than its factorization.

12623812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8838 (or 8836 counting only the distinct ones).

The product of its digits is 1152, while the sum is 25.

The square root of 12623812 is about 3553.0004221784. Note that the first 3 decimals coincide. The cubic root of 12623812 is about 232.8431714947.

The spelling of 12623812 in words is "twelve million, six hundred twenty-three thousand, eight hundred twelve".