328615 has 16 divisors (see below), whose sum is σ = 463680. Its totient is φ = 218880.

The previous prime is 328591. The next prime is 328619. The reversal of 328615 is 516823.

It is a happy number.

It is not a de Polignac number, because 328615 - 2⁹ = 328103 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 328615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1321 + ... + 1549.

It is an arithmetic number, because the mean of its divisors is an integer number (28980).

2³²⁸⁶¹⁵ is an apocalyptic number.

328615 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

328615 is the 287-th decagonal number.

328615 is a deficient number, since it is larger than the sum of its proper divisors (135065).

328615 is a wasteful number, since it uses less digits than its factorization.

328615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282.

The product of its digits is 1440, while the sum is 25.

The square root of 328615 is about 573.2495093762. The cubic root of 328615 is about 69.0074206120.

The spelling of 328615 in words is "three hundred twenty-eight thousand, six hundred fifteen".