328782269 has 2 divisors, whose sum is σ = 328782270. Its totient is φ = 328782268.

The previous prime is 328782221. The next prime is 328782271. The reversal of 328782269 is 962287823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 164814244 + 163968025 = 12838^2 + 12805^2 .

It is a cyclic number.

It is not a de Polignac number, because 328782269 - 2¹² = 328778173 is a prime.

It is a super-2 number, since 2×328782269² = 216195560817576722, which contains 22 as substring.

Together with 328782271, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328782569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164391134 + 164391135.

It is an arithmetic number, because the mean of its divisors is an integer number (164391135).

Almost surely, 2^328782269 is an apocalyptic number.

It is an amenable number.

328782269 is a deficient number, since it is larger than the sum of its proper divisors (1).

328782269 is an equidigital number, since it uses as much as digits as its factorization.

328782269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 47.

The square root of 328782269 is about 18132.3542045703. The cubic root of 328782269 is about 690.1912716253.

The spelling of 328782269 in words is "three hundred twenty-eight million, seven hundred eighty-two thousand, two hundred sixty-nine".