927568661 has 2 divisors, whose sum is σ = 927568662. Its totient is φ = 927568660.

The previous prime is 927568627. The next prime is 927568669. The reversal of 927568661 is 166865729.

927568661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 868186225 + 59382436 = 29465^2 + 7706^2 .

It is an emirp because it is prime and its reverse (166865729) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 927568661 - 2²⁶ = 860459797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (927568669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 463784330 + 463784331.

It is an arithmetic number, because the mean of its divisors is an integer number (463784331).

Almost surely, 2^927568661 is an apocalyptic number.

It is an amenable number.

927568661 is a deficient number, since it is larger than the sum of its proper divisors (1).

927568661 is an equidigital number, since it uses as much as digits as its factorization.

927568661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 50.

The square root of 927568661 is about 30456.0119024143. The cubic root of 927568661 is about 975.2486452415.

The spelling of 927568661 in words is "nine hundred twenty-seven million, five hundred sixty-eight thousand, six hundred sixty-one".