13006623 has 8 divisors (see below), whose sum is σ = 19819648. Its totient is φ = 7432344.

The previous prime is 13006613. The next prime is 13006627. The reversal of 13006623 is 32660031.

13006623 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13006623 - 2⁶ = 13006559 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 619363 = 13006623 / (1 + 3 + 0 + 0 + 6 + 6 + 2 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13006623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13006627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309661 + ... + 309702.

It is an arithmetic number, because the mean of its divisors is an integer number (2477456).

Almost surely, 2^13006623 is an apocalyptic number.

13006623 is a deficient number, since it is larger than the sum of its proper divisors (6813025).

13006623 is an equidigital number, since it uses as much as digits as its factorization.

13006623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619373.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 13006623 is about 3606.4696033656. The cubic root of 13006623 is about 235.1733924792.

Adding to 13006623 its reverse (32660031), we get a palindrome (45666654).

The spelling of 13006623 in words is "thirteen million, six thousand, six hundred twenty-three".