13443623 has 2 divisors, whose sum is σ = 13443624. Its totient is φ = 13443622.

The previous prime is 13443589. The next prime is 13443629. The reversal of 13443623 is 32634431.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13443623 - 2¹² = 13439527 is a prime.

It is a super-2 number, since 2×13443623² = 361461998732258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13443592 and 13443601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13443629) 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 as a sum of consecutive naturals, namely, 6721811 + 6721812.

It is an arithmetic number, because the mean of its divisors is an integer number (6721812).

Almost surely, 2^13443623 is an apocalyptic number.

13443623 is a deficient number, since it is larger than the sum of its proper divisors (1).

13443623 is an equidigital number, since it uses as much as digits as its factorization.

13443623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 26.

The square root of 13443623 is about 3666.5546498041. The cubic root of 13443623 is about 237.7782401090.

The spelling of 13443623 in words is "thirteen million, four hundred forty-three thousand, six hundred twenty-three".