330490091 has 2 divisors, whose sum is σ = 330490092. Its totient is φ = 330490090.

The previous prime is 330490049. The next prime is 330490099. The reversal of 330490091 is 190094033.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 330490091 - 2¹⁰ = 330489067 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is equal to p_17810264 and since 330490091 and 17810264 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (330490099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165245045 + 165245046.

It is an arithmetic number, because the mean of its divisors is an integer number (165245046).

Almost surely, 2^330490091 is an apocalyptic number.

330490091 is a deficient number, since it is larger than the sum of its proper divisors (1).

330490091 is an equidigital number, since it uses as much as digits as its factorization.

330490091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 330490091 is about 18179.3864307902. The cubic root of 330490091 is about 691.3842483585.

The spelling of 330490091 in words is "three hundred thirty million, four hundred ninety thousand, ninety-one".