11726091 has 48 divisors (see below), whose sum is σ = 19498752. Its totient is φ = 6739200.

The previous prime is 11726089. The next prime is 11726093. The reversal of 11726091 is 19062711.

It is an interprime number because it is at equal distance from previous prime (11726089) and next prime (11726093).

It is not a de Polignac number, because 11726091 - 2¹ = 11726089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11726093) 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 47 ways as a sum of consecutive naturals, for example, 192201 + ... + 192261.

It is an arithmetic number, because the mean of its divisors is an integer number (406224).

Almost surely, 2^11726091 is an apocalyptic number.

11726091 is a deficient number, since it is larger than the sum of its proper divisors (7772661).

11726091 is a wasteful number, since it uses less digits than its factorization.

11726091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 27.

The square root of 11726091 is about 3424.3380382199. The cubic root of 11726091 is about 227.1874934740.

The spelling of 11726091 in words is "eleven million, seven hundred twenty-six thousand, ninety-one".