30682009 has 2 divisors, whose sum is σ = 30682010. Its totient is φ = 30682008.

The previous prime is 30682007. The next prime is 30682027. The reversal of 30682009 is 90028603.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27248400 + 3433609 = 5220^2 + 1853^2 .

It is a cyclic number.

It is not a de Polignac number, because 30682009 - 2¹ = 30682007 is a prime.

Together with 30682007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (30682007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15341004 + 15341005.

It is an arithmetic number, because the mean of its divisors is an integer number (15341005).

Almost surely, 2^30682009 is an apocalyptic number.

It is an amenable number.

30682009 is a deficient number, since it is larger than the sum of its proper divisors (1).

30682009 is an equidigital number, since it uses as much as digits as its factorization.

30682009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 30682009 is about 5539.1343186458. The cubic root of 30682009 is about 313.0602523618.

The spelling of 30682009 in words is "thirty million, six hundred eighty-two thousand, nine".