13863838 has 4 divisors (see below), whose sum is σ = 20795760. Its totient is φ = 6931918.

The previous prime is 13863799. The next prime is 13863907. The reversal of 13863838 is 83836831.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 13863838.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3465958 + ... + 3465961.

It is an arithmetic number, because the mean of its divisors is an integer number (5198940).

Almost surely, 2^13863838 is an apocalyptic number.

13863838 is a deficient number, since it is larger than the sum of its proper divisors (6931922).

13863838 is an equidigital number, since it uses as much as digits as its factorization.

13863838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6931921.

The product of its digits is 82944, while the sum is 40.

The square root of 13863838 is about 3723.4175162074. The cubic root of 13863838 is about 240.2303228748.

The spelling of 13863838 in words is "thirteen million, eight hundred sixty-three thousand, eight hundred thirty-eight".