13669623 has 12 divisors (see below), whose sum is σ = 21540168. Its totient is φ = 8284560.

The previous prime is 13669609. The next prime is 13669627. The reversal of 13669623 is 32696631.

It is not a de Polignac number, because 13669623 - 2¹⁴ = 13653239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13669627) 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 11 ways as a sum of consecutive naturals, for example, 68940 + ... + 69137.

It is an arithmetic number, because the mean of its divisors is an integer number (1795014).

Almost surely, 2^13669623 is an apocalyptic number.

13669623 is a deficient number, since it is larger than the sum of its proper divisors (7870545).

13669623 is a wasteful number, since it uses less digits than its factorization.

13669623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138094 (or 138091 counting only the distinct ones).

The product of its digits is 34992, while the sum is 36.

The square root of 13669623 is about 3697.2453259150. The cubic root of 13669623 is about 239.1032682235.

The spelling of 13669623 in words is "thirteen million, six hundred sixty-nine thousand, six hundred twenty-three".