13969623 has 8 divisors (see below), whose sum is σ = 19227136. Its totient is φ = 9012600.

The previous prime is 13969621. The next prime is 13969667. The reversal of 13969623 is 32696931.

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

It is not a de Polignac number, because 13969623 - 2¹ = 13969621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13969621) 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 7 ways as a sum of consecutive naturals, for example, 75013 + ... + 75198.

It is an arithmetic number, because the mean of its divisors is an integer number (2403392).

Almost surely, 2^13969623 is an apocalyptic number.

13969623 is a deficient number, since it is larger than the sum of its proper divisors (5257513).

13969623 is a wasteful number, since it uses less digits than its factorization.

13969623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150245.

The product of its digits is 52488, while the sum is 39.

The square root of 13969623 is about 3737.5958850577. The cubic root of 13969623 is about 240.8397837804.

The spelling of 13969623 in words is "thirteen million, nine hundred sixty-nine thousand, six hundred twenty-three".