13855967 has 4 divisors (see below), whose sum is σ = 14083176. Its totient is φ = 13628760.

The previous prime is 13855951. The next prime is 13855979. The reversal of 13855967 is 76955831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76955831 = 61 ⋅1261571.

It is a cyclic number.

It is not a de Polignac number, because 13855967 - 2⁴ = 13855951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13855927) 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, 113513 + ... + 113634.

It is an arithmetic number, because the mean of its divisors is an integer number (3520794).

Almost surely, 2^13855967 is an apocalyptic number.

13855967 is a deficient number, since it is larger than the sum of its proper divisors (227209).

13855967 is an equidigital number, since it uses as much as digits as its factorization.

13855967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227208.

The product of its digits is 226800, while the sum is 44.

The square root of 13855967 is about 3722.3604070536. The cubic root of 13855967 is about 240.1848518006.

The spelling of 13855967 in words is "thirteen million, eight hundred fifty-five thousand, nine hundred sixty-seven".