8769661 has 2 divisors, whose sum is σ = 8769662. Its totient is φ = 8769660.

The previous prime is 8769653. The next prime is 8769667. The reversal of 8769661 is 1669678.

8769661 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., 8732025 + 37636 = 2955^2 + 194^2 .

It is a cyclic number.

It is not a de Polignac number, because 8769661 - 2³ = 8769653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8769667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4384830 + 4384831.

It is an arithmetic number, because the mean of its divisors is an integer number (4384831).

Almost surely, 2^8769661 is an apocalyptic number.

It is an amenable number.

8769661 is a deficient number, since it is larger than the sum of its proper divisors (1).

8769661 is an equidigital number, since it uses as much as digits as its factorization.

8769661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 43.

The square root of 8769661 is about 2961.3613423559. The cubic root of 8769661 is about 206.2184897072.

The spelling of 8769661 in words is "eight million, seven hundred sixty-nine thousand, six hundred sixty-one".