13276643 has 8 divisors (see below), whose sum is σ = 14094000. Its totient is φ = 12463360.

The previous prime is 13276639. The next prime is 13276651. The reversal of 13276643 is 34667231.

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

It is a cyclic number.

It is not a de Polignac number, because 13276643 - 2² = 13276639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13276633) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 8108 + ... + 9606.

It is an arithmetic number, because the mean of its divisors is an integer number (1761750).

Almost surely, 2^13276643 is an apocalyptic number.

13276643 is a deficient number, since it is larger than the sum of its proper divisors (817357).

13276643 is a wasteful number, since it uses less digits than its factorization.

13276643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2037.

The product of its digits is 18144, while the sum is 32.

The square root of 13276643 is about 3643.7128042698. The cubic root of 13276643 is about 236.7896737626.

The spelling of 13276643 in words is "thirteen million, two hundred seventy-six thousand, six hundred forty-three".