328949549 has 2 divisors, whose sum is σ = 328949550. Its totient is φ = 328949548.

The previous prime is 328949531. The next prime is 328949563. The reversal of 328949549 is 945949823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 294808900 + 34140649 = 17170^2 + 5843^2 .

It is a cyclic number.

It is not a de Polignac number, because 328949549 - 2²⁸ = 60514093 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 328949549.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328945549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164474774 + 164474775.

It is an arithmetic number, because the mean of its divisors is an integer number (164474775).

Almost surely, 2^328949549 is an apocalyptic number.

It is an amenable number.

328949549 is a deficient number, since it is larger than the sum of its proper divisors (1).

328949549 is an equidigital number, since it uses as much as digits as its factorization.

328949549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2799360, while the sum is 53.

The square root of 328949549 is about 18136.9663670637. The cubic root of 328949549 is about 690.3083051270.

The spelling of 328949549 in words is "three hundred twenty-eight million, nine hundred forty-nine thousand, five hundred forty-nine".