13043623 has 4 divisors (see below), whose sum is σ = 13227408. Its totient is φ = 12859840.

The previous prime is 13043603. The next prime is 13043629. The reversal of 13043623 is 32634031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32634031 = 79 ⋅413089.

It is a cyclic number.

It is not a de Polignac number, because 13043623 - 2¹⁷ = 12912551 is a prime.

It is a super-2 number, since 2×13043623² = 340272201932258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13043594 and 13043603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13043629) 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 3 ways as a sum of consecutive naturals, for example, 91786 + ... + 91927.

It is an arithmetic number, because the mean of its divisors is an integer number (3306852).

Almost surely, 2^13043623 is an apocalyptic number.

13043623 is a deficient number, since it is larger than the sum of its proper divisors (183785).

13043623 is an equidigital number, since it uses as much as digits as its factorization.

13043623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183784.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 13043623 is about 3611.5956307427. The cubic root of 13043623 is about 235.3961809656.

Adding to 13043623 its reverse (32634031), we get a palindrome (45677654).

The spelling of 13043623 in words is "thirteen million, forty-three thousand, six hundred twenty-three".