9069869 has 2 divisors, whose sum is σ = 9069870. Its totient is φ = 9069868.

The previous prime is 9069839. The next prime is 9069877. The reversal of 9069869 is 9689609.

It is a happy number.

9069869 is digitally balanced in base 3, 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., 4818025 + 4251844 = 2195^2 + 2062^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9069869 is a prime.

It is a super-2 number, since 2×9069869² = 164525047354322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9069829) 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, 4534934 + 4534935.

It is an arithmetic number, because the mean of its divisors is an integer number (4534935).

Almost surely, 2^9069869 is an apocalyptic number.

It is an amenable number.

9069869 is a deficient number, since it is larger than the sum of its proper divisors (1).

9069869 is an equidigital number, since it uses as much as digits as its factorization.

9069869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209952, while the sum is 47.

The square root of 9069869 is about 3011.6223202786. The cubic root of 9069869 is about 208.5452671393.

The spelling of 9069869 in words is "nine million, sixty-nine thousand, eight hundred sixty-nine".