576090661 has 2 divisors, whose sum is σ = 576090662. Its totient is φ = 576090660.

The previous prime is 576090653. The next prime is 576090721. The reversal of 576090661 is 166090675.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 534488161 + 41602500 = 23119^2 + 6450^2 .

It is a cyclic number.

It is not a de Polignac number, because 576090661 - 2³ = 576090653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (576097661) 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, 288045330 + 288045331.

It is an arithmetic number, because the mean of its divisors is an integer number (288045331).

Almost surely, 2^576090661 is an apocalyptic number.

It is an amenable number.

576090661 is a deficient number, since it is larger than the sum of its proper divisors (1).

576090661 is an equidigital number, since it uses as much as digits as its factorization.

576090661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 576090661 is about 24001.8886965172. Note that the first 3 decimals coincide. The cubic root of 576090661 is about 832.0771802824.

The spelling of 576090661 in words is "five hundred seventy-six million, ninety thousand, six hundred sixty-one".