329020961 has 2 divisors, whose sum is σ = 329020962. Its totient is φ = 329020960.

The previous prime is 329020943. The next prime is 329020999. The reversal of 329020961 is 169020923.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 167857936 + 161163025 = 12956^2 + 12695^2 .

It is an emirp because it is prime and its reverse (169020923) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 329020961 - 2⁶ = 329020897 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (329020061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164510480 + 164510481.

It is an arithmetic number, because the mean of its divisors is an integer number (164510481).

Almost surely, 2^329020961 is an apocalyptic number.

It is an amenable number.

329020961 is a deficient number, since it is larger than the sum of its proper divisors (1).

329020961 is an equidigital number, since it uses as much as digits as its factorization.

329020961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 329020961 is about 18138.9349466831. The cubic root of 329020961 is about 690.3582547622.

The spelling of 329020961 in words is "three hundred twenty-nine million, twenty thousand, nine hundred sixty-one".