328487 has 4 divisors (see below), whose sum is σ = 330000. Its totient is φ = 326976.

The previous prime is 328481. The next prime is 328511. The reversal of 328487 is 784823.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 328487 - 2¹⁰ = 327463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 328487.

It is not an unprimeable number, because it can be changed into a prime (328481) 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, 362 + ... + 887.

It is an arithmetic number, because the mean of its divisors is an integer number (82500).

2³²⁸⁴⁸⁷ is an apocalyptic number.

328487 is a deficient number, since it is larger than the sum of its proper divisors (1513).

328487 is a wasteful number, since it uses less digits than its factorization.

328487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512.

The product of its digits is 10752, while the sum is 32.

The square root of 328487 is about 573.1378542724. The cubic root of 328487 is about 68.9984596730.

Subtracting from 328487 its sum of digits (32), we obtain a triangular number (328455 = T₈₁₀).

The spelling of 328487 in words is "three hundred twenty-eight thousand, four hundred eighty-seven".