30233993 has 2 divisors, whose sum is σ = 30233994. Its totient is φ = 30233992.

The previous prime is 30233989. The next prime is 30234013. The reversal of 30233993 is 39933203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27962944 + 2271049 = 5288^2 + 1507^2 .

It is a cyclic number.

It is not a de Polignac number, because 30233993 - 2² = 30233989 is a prime.

It is not a weakly prime, because it can be changed into another prime (30233953) 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, 15116996 + 15116997.

It is an arithmetic number, because the mean of its divisors is an integer number (15116997).

Almost surely, 2^30233993 is an apocalyptic number.

It is an amenable number.

30233993 is a deficient number, since it is larger than the sum of its proper divisors (1).

30233993 is an equidigital number, since it uses as much as digits as its factorization.

30233993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13122, while the sum is 32.

The square root of 30233993 is about 5498.5446256259. The cubic root of 30233993 is about 311.5290155703.

The spelling of 30233993 in words is "thirty million, two hundred thirty-three thousand, nine hundred ninety-three".