13947667 has 8 divisors (see below), whose sum is σ = 15129072. Its totient is φ = 12806400.

The previous prime is 13947649. The next prime is 13947671. The reversal of 13947667 is 76674931.

13947667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13947667 - 2¹⁵ = 13914899 is a prime.

It is a Duffinian number.

13947667 is a modest number, since divided by 7667 gives 1394 as remainder.

It is not an unprimeable number, because it can be changed into a prime (13947607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9309 + ... + 10702.

It is an arithmetic number, because the mean of its divisors is an integer number (1891134).

Almost surely, 2^13947667 is an apocalyptic number.

13947667 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

13947667 is a deficient number, since it is larger than the sum of its proper divisors (1181405).

13947667 is a wasteful number, since it uses less digits than its factorization.

13947667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20069.

The product of its digits is 190512, while the sum is 43.

The square root of 13947667 is about 3734.6575478884. The cubic root of 13947667 is about 240.7135419812.

The spelling of 13947667 in words is "thirteen million, nine hundred forty-seven thousand, six hundred sixty-seven".