13865967 has 12 divisors (see below), whose sum is σ = 20081880. Its totient is φ = 9219408.

The previous prime is 13865947. The next prime is 13865977. The reversal of 13865967 is 76956831.

It is a happy number.

13865967 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13865967 - 2²² = 9671663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13865947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1933 + ... + 5609.

It is an arithmetic number, because the mean of its divisors is an integer number (1673490).

Almost surely, 2^13865967 is an apocalyptic number.

13865967 is a deficient number, since it is larger than the sum of its proper divisors (6215913).

13865967 is a wasteful number, since it uses less digits than its factorization.

13865967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4102 (or 4099 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 13865967 is about 3723.7033984999. The cubic root of 13865967 is about 240.2426192336.

The spelling of 13865967 in words is "thirteen million, eight hundred sixty-five thousand, nine hundred sixty-seven".