328750 has 20 divisors (see below), whose sum is σ = 618552. Its totient is φ = 131000.

The previous prime is 328721. The next prime is 328753. The reversal of 328750 is 57823.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328753) by changing a digit.

328750 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1119 + ... + 1381.

328750 is a Friedman number, since it can be written as 50*(3^8+7*2), using all its digits and the basic arithmetic operations.

2³²⁸⁷⁵⁰ is an apocalyptic number.

328750 is a deficient number, since it is larger than the sum of its proper divisors (289802).

328750 is an equidigital number, since it uses as much as digits as its factorization.

328750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 328750 is about 573.3672470590. The cubic root of 328750 is about 69.0168690814.

The spelling of 328750 in words is "three hundred twenty-eight thousand, seven hundred fifty".