30768317 has 4 divisors (see below), whose sum is σ = 32578236. Its totient is φ = 28958400.

The previous prime is 30768301. The next prime is 30768341. The reversal of 30768317 is 71386703.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23483716 + 7284601 = 4846^2 + 2699^2 .

It is a cyclic number.

It is not a de Polignac number, because 30768317 - 2⁴ = 30768301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30768377) 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 in 3 ways as a sum of consecutive naturals, for example, 904934 + ... + 904967.

It is an arithmetic number, because the mean of its divisors is an integer number (8144559).

Almost surely, 2^30768317 is an apocalyptic number.

It is an amenable number.

30768317 is a deficient number, since it is larger than the sum of its proper divisors (1809919).

30768317 is a wasteful number, since it uses less digits than its factorization.

30768317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1809918.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 30768317 is about 5546.9195955954. The cubic root of 30768317 is about 313.3535220380.

The spelling of 30768317 in words is "thirty million, seven hundred sixty-eight thousand, three hundred seventeen".