30668479 has 2 divisors, whose sum is σ = 30668480. Its totient is φ = 30668478.

The previous prime is 30668467. The next prime is 30668497. The reversal of 30668479 is 97486603.

It is a happy number.

Together with next prime (30668497) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30668479 - 2¹¹ = 30666431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30668419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15334239 + 15334240.

It is an arithmetic number, because the mean of its divisors is an integer number (15334240).

Almost surely, 2^30668479 is an apocalyptic number.

30668479 is a deficient number, since it is larger than the sum of its proper divisors (1).

30668479 is an equidigital number, since it uses as much as digits as its factorization.

30668479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 30668479 is about 5537.9128739987. The cubic root of 30668479 is about 313.0142283440.

The spelling of 30668479 in words is "thirty million, six hundred sixty-eight thousand, four hundred seventy-nine".