326831009 has 8 divisors (see below), whose sum is σ = 331316832. Its totient is φ = 322358400.

The previous prime is 326830961. The next prime is 326831023. The reversal of 326831009 is 900138623.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 326831009 - 2⁸ = 326830753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (326831039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52934 + ... + 58784.

It is an arithmetic number, because the mean of its divisors is an integer number (41414604).

Almost surely, 2^326831009 is an apocalyptic number.

It is an amenable number.

326831009 is a deficient number, since it is larger than the sum of its proper divisors (4485823).

326831009 is an equidigital number, since it uses as much as digits as its factorization.

326831009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6607.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 326831009 is about 18078.4681043500. The cubic root of 326831009 is about 688.8231771068.

The spelling of 326831009 in words is "three hundred twenty-six million, eight hundred thirty-one thousand, nine".