11776643 has 2 divisors, whose sum is σ = 11776644. Its totient is φ = 11776642.

The previous prime is 11776627. The next prime is 11776703. The reversal of 11776643 is 34667711.

11776643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11776643 - 2⁴ = 11776627 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11776603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5888321 + 5888322.

It is an arithmetic number, because the mean of its divisors is an integer number (5888322).

Almost surely, 2^11776643 is an apocalyptic number.

11776643 is a deficient number, since it is larger than the sum of its proper divisors (1).

11776643 is an equidigital number, since it uses as much as digits as its factorization.

11776643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 35.

The square root of 11776643 is about 3431.7113806379. The cubic root of 11776643 is about 227.5134991789.

The spelling of 11776643 in words is "eleven million, seven hundred seventy-six thousand, six hundred forty-three".