11772091 has 2 divisors, whose sum is σ = 11772092. Its totient is φ = 11772090.

The previous prime is 11772071. The next prime is 11772097. The reversal of 11772091 is 19027711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11772091 - 2²¹ = 9674939 is a prime.

It is not a weakly prime, because it can be changed into another prime (11772097) 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 as a sum of consecutive naturals, namely, 5886045 + 5886046.

It is an arithmetic number, because the mean of its divisors is an integer number (5886046).

Almost surely, 2^11772091 is an apocalyptic number.

11772091 is a deficient number, since it is larger than the sum of its proper divisors (1).

11772091 is an equidigital number, since it uses as much as digits as its factorization.

11772091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 882, while the sum is 28.

The square root of 11772091 is about 3431.0480905986. The cubic root of 11772091 is about 227.4841819699.

The spelling of 11772091 in words is "eleven million, seven hundred seventy-two thousand, ninety-one".