326928913 has 4 divisors (see below), whose sum is σ = 327595248. Its totient is φ = 326262580.

The previous prime is 326928911. The next prime is 326928947. The reversal of 326928913 is 319829623.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 326928913 - 2¹ = 326928911 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 326928913.

It is not an unprimeable number, because it can be changed into a prime (326928911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332431 + ... + 333412.

It is an arithmetic number, because the mean of its divisors is an integer number (81898812).

Almost surely, 2^326928913 is an apocalyptic number.

It is an amenable number.

326928913 is a deficient number, since it is larger than the sum of its proper divisors (666335).

326928913 is an equidigital number, since it uses as much as digits as its factorization.

326928913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666334.

The product of its digits is 139968, while the sum is 43.

The square root of 326928913 is about 18081.1756531482. The cubic root of 326928913 is about 688.8919504787.

The spelling of 326928913 in words is "three hundred twenty-six million, nine hundred twenty-eight thousand, nine hundred thirteen".