330432397 has 2 divisors, whose sum is σ = 330432398. Its totient is φ = 330432396.

The previous prime is 330432359. The next prime is 330432433. The reversal of 330432397 is 793234033.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 306285001 + 24147396 = 17501^2 + 4914^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-330432397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (330432497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165216198 + 165216199.

It is an arithmetic number, because the mean of its divisors is an integer number (165216199).

Almost surely, 2^330432397 is an apocalyptic number.

It is an amenable number.

330432397 is a deficient number, since it is larger than the sum of its proper divisors (1).

330432397 is an equidigital number, since it uses as much as digits as its factorization.

330432397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 34.

The square root of 330432397 is about 18177.7995643037. The cubic root of 330432397 is about 691.3440141273.

The spelling of 330432397 in words is "three hundred thirty million, four hundred thirty-two thousand, three hundred ninety-seven".