11772589 has 2 divisors, whose sum is σ = 11772590. Its totient is φ = 11772588.

The previous prime is 11772587. The next prime is 11772601. The reversal of 11772589 is 98527711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8940100 + 2832489 = 2990^2 + 1683^2 .

It is a cyclic number.

It is not a de Polignac number, because 11772589 - 2¹ = 11772587 is a prime.

Together with 11772587, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11772587) 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, 5886294 + 5886295.

It is an arithmetic number, because the mean of its divisors is an integer number (5886295).

Almost surely, 2^11772589 is an apocalyptic number.

It is an amenable number.

11772589 is a deficient number, since it is larger than the sum of its proper divisors (1).

11772589 is an equidigital number, since it uses as much as digits as its factorization.

11772589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35280, while the sum is 40.

The square root of 11772589 is about 3431.1206624075. The cubic root of 11772589 is about 227.4873897128.

The spelling of 11772589 in words is "eleven million, seven hundred seventy-two thousand, five hundred eighty-nine".