328577 has 4 divisors (see below), whose sum is σ = 335616. Its totient is φ = 321540.

The previous prime is 328543. The next prime is 328579. The reversal of 328577 is 775823.

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 not a de Polignac number, because 328577 - 2⁶ = 328513 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328579) 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, 3449 + ... + 3542.

It is an arithmetic number, because the mean of its divisors is an integer number (83904).

2³²⁸⁵⁷⁷ is an apocalyptic number.

It is an amenable number.

328577 is a deficient number, since it is larger than the sum of its proper divisors (7039).

328577 is an equidigital number, since it uses as much as digits as its factorization.

328577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7038.

The product of its digits is 11760, while the sum is 32.

The square root of 328577 is about 573.2163640372. The cubic root of 328577 is about 69.0047605761.

The spelling of 328577 in words is "three hundred twenty-eight thousand, five hundred seventy-seven".