30906329 has 2 divisors, whose sum is σ = 30906330. Its totient is φ = 30906328.

The previous prime is 30906311. The next prime is 30906341. The reversal of 30906329 is 92360903.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30780304 + 126025 = 5548^2 + 355^2 .

It is an emirp because it is prime and its reverse (92360903) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30906329 - 2¹⁶ = 30840793 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 30906295 and 30906304.

It is not a weakly prime, because it can be changed into another prime (30906929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15453164 + 15453165.

It is an arithmetic number, because the mean of its divisors is an integer number (15453165).

Almost surely, 2^30906329 is an apocalyptic number.

It is an amenable number.

30906329 is a deficient number, since it is larger than the sum of its proper divisors (1).

30906329 is an equidigital number, since it uses as much as digits as its factorization.

30906329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 32.

The square root of 30906329 is about 5559.3460946410. The cubic root of 30906329 is about 313.8213414273.

The spelling of 30906329 in words is "thirty million, nine hundred six thousand, three hundred twenty-nine".