12732646 has 8 divisors (see below), whose sum is σ = 19227600. Its totient is φ = 6323448.

The previous prime is 12732637. The next prime is 12732647. The reversal of 12732646 is 64623721.

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

It is a super-2 number, since 2×12732646² = 324240548322632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12732647) 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, 21066 + ... + 21661.

It is an arithmetic number, because the mean of its divisors is an integer number (2403450).

Almost surely, 2^12732646 is an apocalyptic number.

12732646 is a deficient number, since it is larger than the sum of its proper divisors (6494954).

12732646 is a wasteful number, since it uses less digits than its factorization.

12732646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42878.

The product of its digits is 12096, while the sum is 31.

The square root of 12732646 is about 3568.2833407677. The cubic root of 12732646 is about 233.5103966685.

The spelling of 12732646 in words is "twelve million, seven hundred thirty-two thousand, six hundred forty-six".