330508397 has 2 divisors, whose sum is σ = 330508398. Its totient is φ = 330508396.

The previous prime is 330508379. The next prime is 330508411. The reversal of 330508397 is 793805033.

Together with previous prime (330508379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220552201 + 109956196 = 14851^2 + 10486^2 .

It is a cyclic number.

It is not a de Polignac number, because 330508397 - 2²⁴ = 313731181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 330508397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (330508307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165254198 + 165254199.

It is an arithmetic number, because the mean of its divisors is an integer number (165254199).

Almost surely, 2^330508397 is an apocalyptic number.

It is an amenable number.

330508397 is a deficient number, since it is larger than the sum of its proper divisors (1).

330508397 is an equidigital number, since it uses as much as digits as its factorization.

330508397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 330508397 is about 18179.8899061573. The cubic root of 330508397 is about 691.3970134880.

The spelling of 330508397 in words is "three hundred thirty million, five hundred eight thousand, three hundred ninety-seven".