330439973 has 2 divisors, whose sum is σ = 330439974. Its totient is φ = 330439972.

The previous prime is 330439937. The next prime is 330439979. The reversal of 330439973 is 379934033.

It is a happy number.

Together with previous prime (330439937) 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., 330439684 + 289 = 18178^2 + 17^2 .

It is a cyclic number.

It is not a de Polignac number, because 330439973 - 2¹⁸ = 330177829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 330439973.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (330439979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165219986 + 165219987.

It is an arithmetic number, because the mean of its divisors is an integer number (165219987).

Almost surely, 2^330439973 is an apocalyptic number.

It is an amenable number.

330439973 is a deficient number, since it is larger than the sum of its proper divisors (1).

330439973 is an equidigital number, since it uses as much as digits as its factorization.

330439973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 183708, while the sum is 41.

The square root of 330439973 is about 18178.0079491676. The cubic root of 330439973 is about 691.3492976914.

The spelling of 330439973 in words is "three hundred thirty million, four hundred thirty-nine thousand, nine hundred seventy-three".