30970033 has 2 divisors, whose sum is σ = 30970034. Its totient is φ = 30970032.

The previous prime is 30970021. The next prime is 30970081. The reversal of 30970033 is 33007903.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28387584 + 2582449 = 5328^2 + 1607^2 .

It is an emirp because it is prime and its reverse (33007903) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30970033 - 2⁵ = 30970001 is a prime.

It is not a weakly prime, because it can be changed into another prime (36970033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15485016 + 15485017.

It is an arithmetic number, because the mean of its divisors is an integer number (15485017).

Almost surely, 2^30970033 is an apocalyptic number.

It is an amenable number.

30970033 is a deficient number, since it is larger than the sum of its proper divisors (1).

30970033 is an equidigital number, since it uses as much as digits as its factorization.

30970033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1701, while the sum is 25.

The square root of 30970033 is about 5565.0725961123. The cubic root of 30970033 is about 314.0368092134.

Adding to 30970033 its reverse (33007903), we get a palindrome (63977936).

The spelling of 30970033 in words is "thirty million, nine hundred seventy thousand, thirty-three".