12696436 has 6 divisors (see below), whose sum is σ = 22218770. Its totient is φ = 6348216.

The previous prime is 12696413. The next prime is 12696443. The reversal of 12696436 is 63469621.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12531600 + 164836 = 3540^2 + 406^2 .

It is a super-2 number, since 2×12696436² = 322398974204192, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12696395 and 12696404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1587051 + ... + 1587058.

Almost surely, 2^12696436 is an apocalyptic number.

It is an amenable number.

12696436 is a deficient number, since it is larger than the sum of its proper divisors (9522334).

12696436 is a wasteful number, since it uses less digits than its factorization.

12696436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3174113 (or 3174111 counting only the distinct ones).

The product of its digits is 46656, while the sum is 37.

The square root of 12696436 is about 3563.2058598964. The cubic root of 12696436 is about 233.2888287002.

The spelling of 12696436 in words is "twelve million, six hundred ninety-six thousand, four hundred thirty-six".