11772911 has 2 divisors, whose sum is σ = 11772912. Its totient is φ = 11772910.

The previous prime is 11772899. The next prime is 11772931. The reversal of 11772911 is 11927711.

It is a weak prime.

It is an emirp because it is prime and its reverse (11927711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11772911 - 2⁶ = 11772847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11772931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5886455 + 5886456.

It is an arithmetic number, because the mean of its divisors is an integer number (5886456).

Almost surely, 2^11772911 is an apocalyptic number.

11772911 is a deficient number, since it is larger than the sum of its proper divisors (1).

11772911 is an equidigital number, since it uses as much as digits as its factorization.

11772911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 882, while the sum is 29.

The square root of 11772911 is about 3431.1675855312. The cubic root of 11772911 is about 227.4894637474.

The spelling of 11772911 in words is "eleven million, seven hundred seventy-two thousand, nine hundred eleven".