328605269 has 4 divisors (see below), whose sum is σ = 336247296. Its totient is φ = 320963244.

The previous prime is 328605227. The next prime is 328605271. The reversal of 328605269 is 962506823.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-328605269 is a prime.

It is a super-2 number, since 2×328605269² = 215962845629124722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328605169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3820949 + ... + 3821034.

It is an arithmetic number, because the mean of its divisors is an integer number (84061824).

Almost surely, 2^328605269 is an apocalyptic number.

It is an amenable number.

328605269 is a deficient number, since it is larger than the sum of its proper divisors (7642027).

328605269 is an equidigital number, since it uses as much as digits as its factorization.

328605269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7642026.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 328605269 is about 18127.4727692528. The cubic root of 328605269 is about 690.0673945234.

The spelling of 328605269 in words is "three hundred twenty-eight million, six hundred five thousand, two hundred sixty-nine".