13947079 has 4 divisors (see below), whose sum is σ = 13955760. Its totient is φ = 13938400.

The previous prime is 13947067. The next prime is 13947103. The reversal of 13947079 is 97074931.

13947079 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 97074931 = 3911 ⋅24821.

It is a cyclic number.

It is not a de Polignac number, because 13947079 - 2¹⁹ = 13422791 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 (13947029) 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, 1147 + ... + 5404.

It is an arithmetic number, because the mean of its divisors is an integer number (3488940).

Almost surely, 2^13947079 is an apocalyptic number.

13947079 is a deficient number, since it is larger than the sum of its proper divisors (8681).

13947079 is an equidigital number, since it uses as much as digits as its factorization.

13947079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8680.

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 13947079 is about 3734.5788249815. The cubic root of 13947079 is about 240.7101592995.

The spelling of 13947079 in words is "thirteen million, nine hundred forty-seven thousand, seventy-nine".