328651 has 2 divisors, whose sum is σ = 328652. Its totient is φ = 328650.

The previous prime is 328639. The next prime is 328667. The reversal of 328651 is 156823.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (156823) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 328651 - 2⁵ = 328619 is a prime.

It is a super-2 number, since 2×328651² = 216022959602, which contains 22 as substring.

It is a d-powerful number, because it can be written as 3⁶ + 2¹⁶ + 6³ + 8⁶ + 5² + 1 .

It is not a weakly prime, because it can be changed into another prime (328621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164325 + 164326.

It is an arithmetic number, because the mean of its divisors is an integer number (164326).

2³²⁸⁶⁵¹ is an apocalyptic number.

328651 is a deficient number, since it is larger than the sum of its proper divisors (1).

328651 is an equidigital number, since it uses as much as digits as its factorization.

328651 is an odious number, because the sum of its binary digits is odd.

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

The square root of 328651 is about 573.2809084559. The cubic root of 328651 is about 69.0099404568.

It can be divided in two parts, 328 and 651, that added together give a palindrome (979).

The spelling of 328651 in words is "three hundred twenty-eight thousand, six hundred fifty-one".