7066909 has 2 divisors, whose sum is σ = 7066910. Its totient is φ = 7066908.

The previous prime is 7066859. The next prime is 7066931. The reversal of 7066909 is 9096607.

7066909 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., 3790809 + 3276100 = 1947^2 + 1810^2 .

It is a cyclic number.

It is not a de Polignac number, because 7066909 - 2¹¹ = 7064861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7066979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3533454 + 3533455.

It is an arithmetic number, because the mean of its divisors is an integer number (3533455).

Almost surely, 2^7066909 is an apocalyptic number.

It is an amenable number.

7066909 is a deficient number, since it is larger than the sum of its proper divisors (1).

7066909 is an equidigital number, since it uses as much as digits as its factorization.

7066909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 7066909 is about 2658.3658514208. The cubic root of 7066909 is about 191.9006738131.

The spelling of 7066909 in words is "seven million, sixty-six thousand, nine hundred nine".