11706661 has 2 divisors, whose sum is σ = 11706662. Its totient is φ = 11706660.

The previous prime is 11706599. The next prime is 11706677. The reversal of 11706661 is 16660711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10042561 + 1664100 = 3169^2 + 1290^2 .

It is a cyclic number.

It is not a de Polignac number, because 11706661 - 2¹¹ = 11704613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11706161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5853330 + 5853331.

It is an arithmetic number, because the mean of its divisors is an integer number (5853331).

Almost surely, 2^11706661 is an apocalyptic number.

It is an amenable number.

11706661 is a deficient number, since it is larger than the sum of its proper divisors (1).

11706661 is an equidigital number, since it uses as much as digits as its factorization.

11706661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 11706661 is about 3421.4998173316. The cubic root of 11706661 is about 227.0619417345.

The spelling of 11706661 in words is "eleven million, seven hundred six thousand, six hundred sixty-one".