330845813 has 2 divisors, whose sum is σ = 330845814. Its totient is φ = 330845812.

The previous prime is 330845791. The next prime is 330845873. The reversal of 330845813 is 318548033.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 208455844 + 122389969 = 14438^2 + 11063^2 .

It is a cyclic number.

It is not a de Polignac number, because 330845813 - 2¹² = 330841717 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (330845873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165422906 + 165422907.

It is an arithmetic number, because the mean of its divisors is an integer number (165422907).

Almost surely, 2^330845813 is an apocalyptic number.

It is an amenable number.

330845813 is a deficient number, since it is larger than the sum of its proper divisors (1).

330845813 is an equidigital number, since it uses as much as digits as its factorization.

330845813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 330845813 is about 18189.1674630809. The cubic root of 330845813 is about 691.6322158548.

The spelling of 330845813 in words is "three hundred thirty million, eight hundred forty-five thousand, eight hundred thirteen".