13819793 has 8 divisors (see below), whose sum is σ = 15758568. Its totient is φ = 12006144.

The previous prime is 13819781. The next prime is 13819801. The reversal of 13819793 is 39791831.

It can be written as a sum of positive squares in 4 ways, for example, as 2982529 + 10837264 = 1727^2 + 3292^2 .

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 13819793 - 2¹⁰ = 13818769 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13819793.

It is not an unprimeable number, because it can be changed into a prime (13819723) 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, 31046 + ... + 31487.

It is an arithmetic number, because the mean of its divisors is an integer number (1969821).

Almost surely, 2^13819793 is an apocalyptic number.

13819793 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13819793 is a deficient number, since it is larger than the sum of its proper divisors (1938775).

13819793 is a wasteful number, since it uses less digits than its factorization.

13819793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62563.

The product of its digits is 40824, while the sum is 41.

The square root of 13819793 is about 3717.4982178879. The cubic root of 13819793 is about 239.9756514651.

The spelling of 13819793 in words is "thirteen million, eight hundred nineteen thousand, seven hundred ninety-three".