328569 has 8 divisors (see below), whose sum is σ = 452352. Its totient is φ = 211920.

The previous prime is 328543. The next prime is 328579. The reversal of 328569 is 965823.

328569 = T₁₈₂ + T₁₈₃ + ... + T₁₉₉.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 328569 - 2¹² = 324473 is a prime.

It is a super-2 number, since 2×328569² = 215915175522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (328519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1674 + ... + 1859.

It is an arithmetic number, because the mean of its divisors is an integer number (56544).

328569 is a Friedman number, since it can be written as 69^3+52+8, using all its digits and the basic arithmetic operations.

2³²⁸⁵⁶⁹ is an apocalyptic number.

It is an amenable number.

328569 is a deficient number, since it is larger than the sum of its proper divisors (123783).

328569 is a wasteful number, since it uses less digits than its factorization.

328569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3567.

The product of its digits is 12960, while the sum is 33.

The square root of 328569 is about 573.2093858269. The cubic root of 328569 is about 69.0042005424.

The spelling of 328569 in words is "three hundred twenty-eight thousand, five hundred sixty-nine".