13436423 has 32 divisors (see below), whose sum is σ = 18665472. Its totient is φ = 9331200.

The previous prime is 13436417. The next prime is 13436431. The reversal of 13436423 is 32463431.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13436423 - 2⁶ = 13436359 is a prime.

It is a super-3 number, since 3×13436423³ (a number of 22 digits) contains 333 as substring.

It is a zygodrome in base 6.

It is a junction number, because it is equal to n+sod(n) for n = 13436392 and 13436401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13436413) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30815 + ... + 31247.

It is an arithmetic number, because the mean of its divisors is an integer number (583296).

Almost surely, 2^13436423 is an apocalyptic number.

13436423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13436423 is a deficient number, since it is larger than the sum of its proper divisors (5229049).

13436423 is a wasteful number, since it uses less digits than its factorization.

13436423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495.

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

The square root of 13436423 is about 3665.5726701295. The cubic root of 13436423 is about 237.7357835715.

Adding to 13436423 its reverse (32463431), we get a palindrome (45899854).

The spelling of 13436423 in words is "thirteen million, four hundred thirty-six thousand, four hundred twenty-three".