30328609 has 2 divisors, whose sum is σ = 30328610. Its totient is φ = 30328608.

The previous prime is 30328607. The next prime is 30328657. The reversal of 30328609 is 90682303.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21418384 + 8910225 = 4628^2 + 2985^2 .

It is a cyclic number.

It is not a de Polignac number, because 30328609 - 2¹ = 30328607 is a prime.

Together with 30328607, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (30328607) 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, 15164304 + 15164305.

It is an arithmetic number, because the mean of its divisors is an integer number (15164305).

Almost surely, 2^30328609 is an apocalyptic number.

It is an amenable number.

30328609 is a deficient number, since it is larger than the sum of its proper divisors (1).

30328609 is an equidigital number, since it uses as much as digits as its factorization.

30328609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 30328609 is about 5507.1416360940. The cubic root of 30328609 is about 311.8536494474.

The spelling of 30328609 in words is "thirty million, three hundred twenty-eight thousand, six hundred nine".