328031 has 6 divisors (see below), whose sum is σ = 360696. Its totient is φ = 298100.

The previous prime is 328007. The next prime is 328037. The reversal of 328031 is 130823.

It is not a de Polignac number, because 328031 - 2⁶ = 327967 is a prime.

It is a super-2 number, since 2×328031² = 215208673922, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a zygodrome in base 4.

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 328031.

It is not an unprimeable number, because it can be changed into a prime (328037) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1235 + ... + 1476.

It is an arithmetic number, because the mean of its divisors is an integer number (60116).

2³²⁸⁰³¹ is an apocalyptic number.

328031 is a deficient number, since it is larger than the sum of its proper divisors (32665).

328031 is a wasteful number, since it uses less digits than its factorization.

328031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2733 (or 2722 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 328031 is about 572.7399060656. The cubic root of 328031 is about 68.9665173964.

Adding to 328031 its reverse (130823), we get a palindrome (458854).

The spelling of 328031 in words is "three hundred twenty-eight thousand, thirty-one".