30066643 has 2 divisors, whose sum is σ = 30066644. Its totient is φ = 30066642.

The previous prime is 30066613. The next prime is 30066661. The reversal of 30066643 is 34666003.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30066643 - 2⁵ = 30066611 is a prime.

It is not a weakly prime, because it can be changed into another prime (30066613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15033321 + 15033322.

It is an arithmetic number, because the mean of its divisors is an integer number (15033322).

Almost surely, 2^30066643 is an apocalyptic number.

30066643 is a deficient number, since it is larger than the sum of its proper divisors (1).

30066643 is an equidigital number, since it uses as much as digits as its factorization.

30066643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 30066643 is about 5483.3058459291. The cubic root of 30066643 is about 310.9531640956.

The spelling of 30066643 in words is "thirty million, sixty-six thousand, six hundred forty-three".