13813667 has 4 divisors (see below), whose sum is σ = 15787056. Its totient is φ = 11840280.

The previous prime is 13813651. The next prime is 13813699. The reversal of 13813667 is 76631831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76631831 = 101 ⋅758731.

It is a cyclic number.

It is not a de Polignac number, because 13813667 - 2⁴ = 13813651 is a prime.

It is a super-4 number, since 4×13813667⁴ (a number of 30 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13813637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 986684 + ... + 986697.

It is an arithmetic number, because the mean of its divisors is an integer number (3946764).

Almost surely, 2^13813667 is an apocalyptic number.

13813667 is a deficient number, since it is larger than the sum of its proper divisors (1973389).

13813667 is an equidigital number, since it uses as much as digits as its factorization.

13813667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1973388.

The product of its digits is 18144, while the sum is 35.

The square root of 13813667 is about 3716.6741853437. The cubic root of 13813667 is about 239.9401876412.

The spelling of 13813667 in words is "thirteen million, eight hundred thirteen thousand, six hundred sixty-seven".