30968305 has 8 divisors (see below), whose sum is σ = 39348072. Its totient is φ = 23317248.

The previous prime is 30968303. The next prime is 30968341. The reversal of 30968305 is 50386903.

It can be written as a sum of positive squares in 4 ways, for example, as 1461681 + 29506624 = 1209^2 + 5432^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30968305 - 2¹ = 30968303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30968303) 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 in 7 ways as a sum of consecutive naturals, for example, 182082 + ... + 182251.

It is an arithmetic number, because the mean of its divisors is an integer number (4918509).

Almost surely, 2^30968305 is an apocalyptic number.

It is an amenable number.

30968305 is a deficient number, since it is larger than the sum of its proper divisors (8379767).

30968305 is a wasteful number, since it uses less digits than its factorization.

30968305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364355.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 30968305 is about 5564.9173399072. The cubic root of 30968305 is about 314.0309684522.

The spelling of 30968305 in words is "thirty million, nine hundred sixty-eight thousand, three hundred five".