13288791 has 4 divisors (see below), whose sum is σ = 17718392. Its totient is φ = 8859192.

The previous prime is 13288783. The next prime is 13288799. The reversal of 13288791 is 19788231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19788231 = 3 ⋅6596077.

It is an interprime number because it is at equal distance from previous prime (13288783) and next prime (13288799).

It is not a de Polignac number, because 13288791 - 2³ = 13288783 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 (13288799) 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, 2214796 + ... + 2214801.

It is an arithmetic number, because the mean of its divisors is an integer number (4429598).

Almost surely, 2^13288791 is an apocalyptic number.

13288791 is a deficient number, since it is larger than the sum of its proper divisors (4429601).

13288791 is an equidigital number, since it uses as much as digits as its factorization.

13288791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4429600.

The product of its digits is 24192, while the sum is 39.

The square root of 13288791 is about 3645.3794041224. The cubic root of 13288791 is about 236.8618718343.

The spelling of 13288791 in words is "thirteen million, two hundred eighty-eight thousand, seven hundred ninety-one".