11679391 has 4 divisors (see below), whose sum is σ = 12366432. Its totient is φ = 10992352.

The previous prime is 11679389. The next prime is 11679407. The reversal of 11679391 is 19397611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19397611 = 151 ⋅128461.

It is a cyclic number.

It is not a de Polignac number, because 11679391 - 2¹ = 11679389 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11679391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11679191) 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, 343495 + ... + 343528.

It is an arithmetic number, because the mean of its divisors is an integer number (3091608).

Almost surely, 2^11679391 is an apocalyptic number.

11679391 is a deficient number, since it is larger than the sum of its proper divisors (687041).

11679391 is an equidigital number, since it uses as much as digits as its factorization.

11679391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687040.

The product of its digits is 10206, while the sum is 37.

The square root of 11679391 is about 3417.5123993923. The cubic root of 11679391 is about 226.8854953696.

It can be divided in two parts, 116 and 79391, that added together give a cube (79507 = 43³).

The spelling of 11679391 in words is "eleven million, six hundred seventy-nine thousand, three hundred ninety-one".