11079891 has 6 divisors (see below), whose sum is σ = 16004300. Its totient is φ = 7386588.

The previous prime is 11079839. The next prime is 11079899. The reversal of 11079891 is 19897011.

It is not a de Polignac number, because 11079891 - 2⁹ = 11079379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11079899) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 615541 + ... + 615558.

Almost surely, 2^11079891 is an apocalyptic number.

11079891 is a deficient number, since it is larger than the sum of its proper divisors (4924409).

11079891 is a wasteful number, since it uses less digits than its factorization.

11079891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231105 (or 1231102 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 36.

The square root of 11079891 is about 3328.6470224402. The cubic root of 11079891 is about 222.9351229291.

It can be divided in two parts, 110798 and 91, that added together give a square (110889 = 333²).

The spelling of 11079891 in words is "eleven million, seventy-nine thousand, eight hundred ninety-one".