13995667 has 8 divisors (see below), whose sum is σ = 16020576. Its totient is φ = 11977152.

The previous prime is 13995643. The next prime is 13995679. The reversal of 13995667 is 76659931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13995667 - 2¹⁹ = 13471379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13995067) 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 7 ways as a sum of consecutive naturals, for example, 4833 + ... + 7165.

It is an arithmetic number, because the mean of its divisors is an integer number (2002572).

Almost surely, 2^13995667 is an apocalyptic number.

13995667 is a deficient number, since it is larger than the sum of its proper divisors (2024909).

13995667 is an equidigital number, since it uses as much as digits as its factorization.

13995667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3197.

The product of its digits is 306180, while the sum is 46.

The square root of 13995667 is about 3741.0783204846. The cubic root of 13995667 is about 240.9893592175.

The spelling of 13995667 in words is "thirteen million, nine hundred ninety-five thousand, six hundred sixty-seven".