11768569 has 2 divisors, whose sum is σ = 11768570. Its totient is φ = 11768568.

The previous prime is 11768557. The next prime is 11768579. The reversal of 11768569 is 96586711.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7907344 + 3861225 = 2812^2 + 1965^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11768569 is a prime.

It is a super-2 number, since 2×11768569² = 276998432615522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11768509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5884284 + 5884285.

It is an arithmetic number, because the mean of its divisors is an integer number (5884285).

Almost surely, 2^11768569 is an apocalyptic number.

It is an amenable number.

11768569 is a deficient number, since it is larger than the sum of its proper divisors (1).

11768569 is an equidigital number, since it uses as much as digits as its factorization.

11768569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 43.

The square root of 11768569 is about 3430.5347979579. The cubic root of 11768569 is about 227.4614933016.

Subtracting from 11768569 its sum of digits (43), we obtain a triangular number (11768526 = T₄₈₅₁).

It can be divided in two parts, 117 and 68569, that added together give a palindrome (68686).

The spelling of 11768569 in words is "eleven million, seven hundred sixty-eight thousand, five hundred sixty-nine".