13693889 has 8 divisors (see below), whose sum is σ = 15725280. Its totient is φ = 11793600.

The previous prime is 13693879. The next prime is 13693907. The reversal of 13693889 is 98839631.

13693889 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 13693889 - 2¹⁶ = 13628353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13693819) 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, 32552 + ... + 32969.

It is an arithmetic number, because the mean of its divisors is an integer number (1965660).

Almost surely, 2^13693889 is an apocalyptic number.

13693889 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13693889 is a deficient number, since it is larger than the sum of its proper divisors (2031391).

13693889 is a wasteful number, since it uses less digits than its factorization.

13693889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65551.

The product of its digits is 279936, while the sum is 47.

The square root of 13693889 is about 3700.5255032225. The cubic root of 13693889 is about 239.2446681252.

The spelling of 13693889 in words is "thirteen million, six hundred ninety-three thousand, eight hundred eighty-nine".