30664705 has 8 divisors (see below), whose sum is σ = 36873000. Its totient is φ = 24481536.

The previous prime is 30664693. The next prime is 30664709. The reversal of 30664705 is 50746603.

It can be written as a sum of positive squares in 4 ways, for example, as 9431041 + 21233664 = 3071^2 + 4608^2 .

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 30664705 - 2⁷ = 30664577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30664709) 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 in 7 ways as a sum of consecutive naturals, for example, 3480 + ... + 8569.

It is an arithmetic number, because the mean of its divisors is an integer number (4609125).

Almost surely, 2^30664705 is an apocalyptic number.

It is an amenable number.

30664705 is a deficient number, since it is larger than the sum of its proper divisors (6208295).

30664705 is a wasteful number, since it uses less digits than its factorization.

30664705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12563.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 30664705 is about 5537.5721214265. The cubic root of 30664705 is about 313.0013881881.

The spelling of 30664705 in words is "thirty million, six hundred sixty-four thousand, seven hundred five".