13809023 has 8 divisors (see below), whose sum is σ = 14247360. Its totient is φ = 13376800.

The previous prime is 13809013. The next prime is 13809031. The reversal of 13809023 is 32090831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13809023 - 2¹⁰ = 13807999 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13808983 and 13809001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13809013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3293 + ... + 6201.

It is an arithmetic number, because the mean of its divisors is an integer number (1780920).

Almost surely, 2^13809023 is an apocalyptic number.

13809023 is a deficient number, since it is larger than the sum of its proper divisors (438337).

13809023 is a wasteful number, since it uses less digits than its factorization.

13809023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3057.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 13809023 is about 3716.0493807268. The cubic root of 13809023 is about 239.9132962270.

Adding to 13809023 its reverse (32090831), we get a palindrome (45899854).

The spelling of 13809023 in words is "thirteen million, eight hundred nine thousand, twenty-three".