13004423 has 4 divisors (see below), whose sum is σ = 13098120. Its totient is φ = 12910728.

The previous prime is 13004393. The next prime is 13004449. The reversal of 13004423 is 32440031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32440031 = 13 ⋅2495387.

It is a cyclic number.

It is not a de Polignac number, because 13004423 - 2⁶ = 13004359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13004483) 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, 46640 + ... + 46917.

It is an arithmetic number, because the mean of its divisors is an integer number (3274530).

Almost surely, 2^13004423 is an apocalyptic number.

13004423 is a deficient number, since it is larger than the sum of its proper divisors (93697).

13004423 is an equidigital number, since it uses as much as digits as its factorization.

13004423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93696.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 13004423 is about 3606.1645830439. The cubic root of 13004423 is about 235.1601322954.

Adding to 13004423 its reverse (32440031), we get a palindrome (45444454).

The spelling of 13004423 in words is "thirteen million, four thousand, four hundred twenty-three".