9069661 has 2 divisors, whose sum is σ = 9069662. Its totient is φ = 9069660.

The previous prime is 9069647. The next prime is 9069667. The reversal of 9069661 is 1669609.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8964036 + 105625 = 2994^2 + 325^2 .

It is a cyclic number.

It is not a de Polignac number, because 9069661 - 2⁹ = 9069149 is a prime.

9069661 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 9069661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9069667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4534830 + 4534831.

It is an arithmetic number, because the mean of its divisors is an integer number (4534831).

Almost surely, 2^9069661 is an apocalyptic number.

It is an amenable number.

9069661 is a deficient number, since it is larger than the sum of its proper divisors (1).

9069661 is an equidigital number, since it uses as much as digits as its factorization.

9069661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 9069661 is about 3011.5877871980. The cubic root of 9069661 is about 208.5436729322.

It can be divided in two parts, 9069 and 661, that added together give a triangular number (9730 = T₁₃₉).

The spelling of 9069661 in words is "nine million, sixty-nine thousand, six hundred sixty-one".