13504423 has 2 divisors, whose sum is σ = 13504424. Its totient is φ = 13504422.

The previous prime is 13504411. The next prime is 13504429. The reversal of 13504423 is 32440531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13504423 - 2¹⁷ = 13373351 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13504394 and 13504403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13504429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6752211 + 6752212.

It is an arithmetic number, because the mean of its divisors is an integer number (6752212).

Almost surely, 2^13504423 is an apocalyptic number.

13504423 is a deficient number, since it is larger than the sum of its proper divisors (1).

13504423 is an equidigital number, since it uses as much as digits as its factorization.

13504423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 13504423 is about 3674.8364589462. The cubic root of 13504423 is about 238.1361589368.

Adding to 13504423 its reverse (32440531), we get a palindrome (45944954).

The spelling of 13504423 in words is "thirteen million, five hundred four thousand, four hundred twenty-three".