328787 has 2 divisors, whose sum is σ = 328788. Its totient is φ = 328786.

The previous prime is 328781. The next prime is 328789. The reversal of 328787 is 787823.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (787823) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 328787 - 2¹⁸ = 66643 is a prime.

Together with 328789, it forms a pair of twin primes.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 328787.

It is not a weakly prime, because it can be changed into another prime (328781) by changing a digit.

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 as a sum of consecutive naturals, namely, 164393 + 164394.

It is an arithmetic number, because the mean of its divisors is an integer number (164394).

2³²⁸⁷⁸⁷ is an apocalyptic number.

328787 is a deficient number, since it is larger than the sum of its proper divisors (1).

328787 is an equidigital number, since it uses as much as digits as its factorization.

328787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18816, while the sum is 35.

The square root of 328787 is about 573.3995116845. The cubic root of 328787 is about 69.0194582103.

The spelling of 328787 in words is "three hundred twenty-eight thousand, seven hundred eighty-seven".