13976005 has 4 divisors (see below), whose sum is σ = 16771212. Its totient is φ = 11180800.

The previous prime is 13975993. The next prime is 13976021. The reversal of 13976005 is 50067931.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9740641 + 4235364 = 3121^2 + 2058^2 .

It is not a de Polignac number, because 13976005 - 2⁷ = 13975877 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1397596 + ... + 1397605.

It is an arithmetic number, because the mean of its divisors is an integer number (4192803).

Almost surely, 2^13976005 is an apocalyptic number.

It is an amenable number.

13976005 is a deficient number, since it is larger than the sum of its proper divisors (2795207).

13976005 is an equidigital number, since it uses as much as digits as its factorization.

13976005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2795206.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 13976005 is about 3738.4495449317. The cubic root of 13976005 is about 240.8764539539.

The spelling of 13976005 in words is "thirteen million, nine hundred seventy-six thousand, five".