13969613 has 8 divisors (see below), whose sum is σ = 16124160. Its totient is φ = 11854800.

The previous prime is 13969603. The next prime is 13969621. The reversal of 13969613 is 31696931.

13969613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13969613 - 2¹⁸ = 13707469 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 (13969603) 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, 9173 + ... + 10586.

It is an arithmetic number, because the mean of its divisors is an integer number (2015520).

Almost surely, 2^13969613 is an apocalyptic number.

It is an amenable number.

13969613 is a deficient number, since it is larger than the sum of its proper divisors (2154547).

13969613 is a wasteful number, since it uses less digits than its factorization.

13969613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19867.

The product of its digits is 26244, while the sum is 38.

The square root of 13969613 is about 3737.5945472991. The cubic root of 13969613 is about 240.8397263129.

The spelling of 13969613 in words is "thirteen million, nine hundred sixty-nine thousand, six hundred thirteen".