30493933 has 2 divisors, whose sum is σ = 30493934. Its totient is φ = 30493932.

The previous prime is 30493927. The next prime is 30493963. The reversal of 30493933 is 33939403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30437289 + 56644 = 5517^2 + 238^2 .

It is a cyclic number.

It is not a de Polignac number, because 30493933 - 2¹⁷ = 30362861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30493963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15246966 + 15246967.

It is an arithmetic number, because the mean of its divisors is an integer number (15246967).

Almost surely, 2^30493933 is an apocalyptic number.

It is an amenable number.

30493933 is a deficient number, since it is larger than the sum of its proper divisors (1).

30493933 is an equidigital number, since it uses as much as digits as its factorization.

30493933 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26244, while the sum is 34.

The square root of 30493933 is about 5522.1312009042. The cubic root of 30493933 is about 312.4192704532.

The spelling of 30493933 in words is "thirty million, four hundred ninety-three thousand, nine hundred thirty-three".