13878383 has 2 divisors, whose sum is σ = 13878384. Its totient is φ = 13878382.

The previous prime is 13878373. The next prime is 13878391. The reversal of 13878383 is 38387831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13878383 - 2⁸ = 13878127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13878383.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13878373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6939191 + 6939192.

It is an arithmetic number, because the mean of its divisors is an integer number (6939192).

Almost surely, 2^13878383 is an apocalyptic number.

13878383 is a deficient number, since it is larger than the sum of its proper divisors (1).

13878383 is an equidigital number, since it uses as much as digits as its factorization.

13878383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 41.

The square root of 13878383 is about 3725.3701829483. The cubic root of 13878383 is about 240.3143046413.

The spelling of 13878383 in words is "thirteen million, eight hundred seventy-eight thousand, three hundred eighty-three".