13409423 has 4 divisors (see below), whose sum is σ = 13507440. Its totient is φ = 13311408.

The previous prime is 13409401. The next prime is 13409441. The reversal of 13409423 is 32490431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13409423 - 2⁶ = 13409359 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13409392 and 13409401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13409323) 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, 48803 + ... + 49076.

It is an arithmetic number, because the mean of its divisors is an integer number (3376860).

Almost surely, 2^13409423 is an apocalyptic number.

13409423 is a deficient number, since it is larger than the sum of its proper divisors (98017).

13409423 is an equidigital number, since it uses as much as digits as its factorization.

13409423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98016.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 13409423 is about 3661.8879010696. The cubic root of 13409423 is about 237.5764363391.

Adding to 13409423 its reverse (32490431), we get a palindrome (45899854).

The spelling of 13409423 in words is "thirteen million, four hundred nine thousand, four hundred twenty-three".