13888867 has 4 divisors (see below), whose sum is σ = 14619880. Its totient is φ = 13157856.

The previous prime is 13888843. The next prime is 13888879. The reversal of 13888867 is 76888831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76888831 = 29 ⋅2651339.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13888867 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13888867.

It is not an unprimeable number, because it can be changed into a prime (13888817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365478 + ... + 365515.

It is an arithmetic number, because the mean of its divisors is an integer number (3654970).

Almost surely, 2^13888867 is an apocalyptic number.

13888867 is a deficient number, since it is larger than the sum of its proper divisors (731013).

13888867 is an equidigital number, since it uses as much as digits as its factorization.

13888867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731012.

The product of its digits is 516096, while the sum is 49.

The square root of 13888867 is about 3726.7770257959. Note that the first 3 decimals coincide. The cubic root of 13888867 is about 240.3748021075.

The spelling of 13888867 in words is "thirteen million, eight hundred eighty-eight thousand, eight hundred sixty-seven".