328444769 has 2 divisors, whose sum is σ = 328444770. Its totient is φ = 328444768.

The previous prime is 328444751. The next prime is 328444817. The reversal of 328444769 is 967444823.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 179238544 + 149206225 = 13388^2 + 12215^2 .

It is a cyclic number.

It is not a de Polignac number, because 328444769 - 2⁸ = 328444513 is a prime.

It is a super-2 number, since 2×328444769² = 215751932566926722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (328440769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164222384 + 164222385.

It is an arithmetic number, because the mean of its divisors is an integer number (164222385).

Almost surely, 2^328444769 is an apocalyptic number.

It is an amenable number.

328444769 is a deficient number, since it is larger than the sum of its proper divisors (1).

328444769 is an equidigital number, since it uses as much as digits as its factorization.

328444769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1161216, while the sum is 47.

The square root of 328444769 is about 18123.0452463155. The cubic root of 328444769 is about 689.9550268244.

The spelling of 328444769 in words is "three hundred twenty-eight million, four hundred forty-four thousand, seven hundred sixty-nine".