326987 has 4 divisors (see below), whose sum is σ = 330456. Its totient is φ = 323520.

The previous prime is 326983. The next prime is 326993. The reversal of 326987 is 789623.

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 326987 - 2² = 326983 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 326987.

It is not an unprimeable number, because it can be changed into a prime (326983) 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, 1589 + ... + 1782.

It is an arithmetic number, because the mean of its divisors is an integer number (82614).

2³²⁶⁹⁸⁷ is an apocalyptic number.

326987 is a deficient number, since it is larger than the sum of its proper divisors (3469).

326987 is an equidigital number, since it uses as much as digits as its factorization.

326987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3468.

The product of its digits is 18144, while the sum is 35.

The square root of 326987 is about 571.8277712738. The cubic root of 326987 is about 68.8932747622.

The spelling of 326987 in words is "three hundred twenty-six thousand, nine hundred eighty-seven".