330279997 has 2 divisors, whose sum is σ = 330279998. Its totient is φ = 330279996.

The previous prime is 330279949. The next prime is 330280031. The reversal of 330279997 is 799972033.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 307441156 + 22838841 = 17534^2 + 4779^2 .

It is a cyclic number.

It is not a de Polignac number, because 330279997 - 2¹¹ = 330277949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 330279997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331279997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165139998 + 165139999.

It is an arithmetic number, because the mean of its divisors is an integer number (165139999).

Almost surely, 2^330279997 is an apocalyptic number.

It is an amenable number.

330279997 is a deficient number, since it is larger than the sum of its proper divisors (1).

330279997 is an equidigital number, since it uses as much as digits as its factorization.

330279997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 642978, while the sum is 49.

The square root of 330279997 is about 18173.6071543324. The cubic root of 330279997 is about 691.2377119701.

The spelling of 330279997 in words is "three hundred thirty million, two hundred seventy-nine thousand, nine hundred ninety-seven".