13782079 has 4 divisors (see below), whose sum is σ = 13805176. Its totient is φ = 13758984.

The previous prime is 13782077. The next prime is 13782089. The reversal of 13782079 is 97028731.

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

It is a cyclic number.

It is not a de Polignac number, because 13782079 - 2¹ = 13782077 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 (13782071) 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, 10629 + ... + 11854.

It is an arithmetic number, because the mean of its divisors is an integer number (3451294).

Almost surely, 2^13782079 is an apocalyptic number.

13782079 is a deficient number, since it is larger than the sum of its proper divisors (23097).

13782079 is an equidigital number, since it uses as much as digits as its factorization.

13782079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23096.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 13782079 is about 3712.4222550782. The cubic root of 13782079 is about 239.7571559815.

The spelling of 13782079 in words is "thirteen million, seven hundred eighty-two thousand, seventy-nine".