30668593 has 2 divisors, whose sum is σ = 30668594. Its totient is φ = 30668592.

The previous prime is 30668569. The next prime is 30668611. The reversal of 30668593 is 39586603.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30217009 + 451584 = 5497^2 + 672^2 .

It is a cyclic number.

It is not a de Polignac number, because 30668593 - 2⁹ = 30668081 is a prime.

It is not a weakly prime, because it can be changed into another prime (30668093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15334296 + 15334297.

It is an arithmetic number, because the mean of its divisors is an integer number (15334297).

Almost surely, 2^30668593 is an apocalyptic number.

It is an amenable number.

30668593 is a deficient number, since it is larger than the sum of its proper divisors (1).

30668593 is an equidigital number, since it uses as much as digits as its factorization.

30668593 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 30668593 is about 5537.9231666754. The cubic root of 30668593 is about 313.0146161861.

The spelling of 30668593 in words is "thirty million, six hundred sixty-eight thousand, five hundred ninety-three".