13264643 has 12 divisors (see below), whose sum is σ = 15532272. Its totient is φ = 11294640.

The previous prime is 13264639. The next prime is 13264663. The reversal of 13264643 is 34646231.

It is not a de Polignac number, because 13264643 - 2² = 13264639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13264663) 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 11 ways as a sum of consecutive naturals, for example, 7373 + ... + 8993.

It is an arithmetic number, because the mean of its divisors is an integer number (1294356).

Almost surely, 2^13264643 is an apocalyptic number.

13264643 is a deficient number, since it is larger than the sum of its proper divisors (2267629).

13264643 is a wasteful number, since it uses less digits than its factorization.

13264643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802 (or 1795 counting only the distinct ones).

The product of its digits is 10368, while the sum is 29.

The square root of 13264643 is about 3642.0657599774. The cubic root of 13264643 is about 236.7183120336.

The spelling of 13264643 in words is "thirteen million, two hundred sixty-four thousand, six hundred forty-three".