30680329 has 2 divisors, whose sum is σ = 30680330. Its totient is φ = 30680328.

The previous prime is 30680327. The next prime is 30680333. The reversal of 30680329 is 92308603.

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., 26759929 + 3920400 = 5173^2 + 1980^2 .

It is an emirp because it is prime and its reverse (92308603) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30680329 - 2¹ = 30680327 is a prime.

Together with 30680327, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 30680329.

It is not a weakly prime, because it can be changed into another prime (30680327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15340164 + 15340165.

It is an arithmetic number, because the mean of its divisors is an integer number (15340165).

Almost surely, 2^30680329 is an apocalyptic number.

It is an amenable number.

30680329 is a deficient number, since it is larger than the sum of its proper divisors (1).

30680329 is an equidigital number, since it uses as much as digits as its factorization.

30680329 is an evil number, because the sum of its binary digits is even.

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

The square root of 30680329 is about 5538.9826683246. The cubic root of 30680329 is about 313.0545383636.

The spelling of 30680329 in words is "thirty million, six hundred eighty thousand, three hundred twenty-nine".