30326809 has 2 divisors, whose sum is σ = 30326810. Its totient is φ = 30326808.

The previous prime is 30326783. The next prime is 30326833. The reversal of 30326809 is 90862303.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19829209 + 10497600 = 4453^2 + 3240^2 .

It is a cyclic number.

It is not a de Polignac number, because 30326809 - 2⁹ = 30326297 is a prime.

It is not a weakly prime, because it can be changed into another prime (30326209) 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, 15163404 + 15163405.

It is an arithmetic number, because the mean of its divisors is an integer number (15163405).

Almost surely, 2^30326809 is an apocalyptic number.

It is an amenable number.

30326809 is a deficient number, since it is larger than the sum of its proper divisors (1).

30326809 is an equidigital number, since it uses as much as digits as its factorization.

30326809 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 30326809 is about 5506.9782095084. The cubic root of 30326809 is about 311.8474798308.

The spelling of 30326809 in words is "thirty million, three hundred twenty-six thousand, eight hundred nine".