12636746 has 8 divisors (see below), whose sum is σ = 20070180. Its totient is φ = 5946688.

The previous prime is 12636739. The next prime is 12636769. The reversal of 12636746 is 64763621.

It can be written as a sum of positive squares in 2 ways, for example, as 12524521 + 112225 = 3539^2 + 335^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185801 + ... + 185868.

Almost surely, 2^12636746 is an apocalyptic number.

12636746 is a deficient number, since it is larger than the sum of its proper divisors (7433434).

12636746 is a wasteful number, since it uses less digits than its factorization.

12636746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371688.

The product of its digits is 36288, while the sum is 35.

The square root of 12636746 is about 3554.8201079661. The cubic root of 12636746 is about 232.9226658565.

The spelling of 12636746 in words is "twelve million, six hundred thirty-six thousand, seven hundred forty-six".