13806423 has 16 divisors (see below), whose sum is σ = 20590560. Its totient is φ = 9142848.

The previous prime is 13806409. The next prime is 13806433. The reversal of 13806423 is 32460831.

It is a happy number.

13806423 is a `hidden beast` number, since 13 + 8 + 0 + 642 + 3 = 666.

It is not a de Polignac number, because 13806423 - 2¹⁴ = 13790039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13806433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2611 + ... + 5867.

It is an arithmetic number, because the mean of its divisors is an integer number (1286910).

Almost surely, 2^13806423 is an apocalyptic number.

13806423 is a deficient number, since it is larger than the sum of its proper divisors (6784137).

13806423 is a wasteful number, since it uses less digits than its factorization.

13806423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3423 (or 3417 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 13806423 is about 3715.6995303711. The cubic root of 13806423 is about 239.8982381083.

The spelling of 13806423 in words is "thirteen million, eight hundred six thousand, four hundred twenty-three".