11791081 has 8 divisors (see below), whose sum is σ = 12915720. Its totient is φ = 10714368.

The previous prime is 11791051. The next prime is 11791093. The reversal of 11791081 is 18019711.

11791081 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3861225 + 7929856 = 1965^2 + 2816^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11791081 - 2¹¹ = 11789033 is a prime.

It is a super-2 number, since 2×11791081² = 278059182297122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11791051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11466 + ... + 12451.

It is an arithmetic number, because the mean of its divisors is an integer number (1614465).

Almost surely, 2^11791081 is an apocalyptic number.

It is an amenable number.

11791081 is a deficient number, since it is larger than the sum of its proper divisors (1124639).

11791081 is a wasteful number, since it uses less digits than its factorization.

11791081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23963.

The product of its (nonzero) digits is 504, while the sum is 28.

The square root of 11791081 is about 3433.8143514174. The cubic root of 11791081 is about 227.6064373341.

The spelling of 11791081 in words is "eleven million, seven hundred ninety-one thousand, eighty-one".