30668611 has 2 divisors, whose sum is σ = 30668612. Its totient is φ = 30668610.

The previous prime is 30668593. The next prime is 30668633. The reversal of 30668611 is 11686603.

It is a weak prime.

It is an emirp because it is prime and its reverse (11686603) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30668611 is a prime.

It is not a weakly prime, because it can be changed into another prime (30668681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15334305 + 15334306.

It is an arithmetic number, because the mean of its divisors is an integer number (15334306).

Almost surely, 2^30668611 is an apocalyptic number.

30668611 is a deficient number, since it is larger than the sum of its proper divisors (1).

30668611 is an equidigital number, since it uses as much as digits as its factorization.

30668611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 30668611 is about 5537.9247918331. The cubic root of 30668611 is about 313.0146774242.

The spelling of 30668611 in words is "thirty million, six hundred sixty-eight thousand, six hundred eleven".