11662769 has 2 divisors, whose sum is σ = 11662770. Its totient is φ = 11662768.

The previous prime is 11662711. The next prime is 11662823. The reversal of 11662769 is 96726611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11641744 + 21025 = 3412^2 + 145^2 .

It is a cyclic number.

It is not a de Polignac number, because 11662769 - 2⁸ = 11662513 is a prime.

It is a super-2 number, since 2×11662769² = 272040361494722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11665769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5831384 + 5831385.

It is an arithmetic number, because the mean of its divisors is an integer number (5831385).

Almost surely, 2^11662769 is an apocalyptic number.

It is an amenable number.

11662769 is a deficient number, since it is larger than the sum of its proper divisors (1).

11662769 is an equidigital number, since it uses as much as digits as its factorization.

11662769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 38.

The square root of 11662769 is about 3415.0796476803. The cubic root of 11662769 is about 226.7778104966. Note that the first 3 decimals are identical.

The spelling of 11662769 in words is "eleven million, six hundred sixty-two thousand, seven hundred sixty-nine".