326931601 has 4 divisors (see below), whose sum is σ = 326976804. Its totient is φ = 326886400.

The previous prime is 326931589. The next prime is 326931617. The reversal of 326931601 is 106139623.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 302725201 + 24206400 = 17399^2 + 4920^2 .

It is a 3-Lehmer number, since φ(326931601) divides (326931601-1)³.

It is a cyclic number.

It is not a de Polignac number, because 326931601 - 2⁵ = 326931569 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a deceptive number, since it divides R_326931600.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (326931701) 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, 9040 + ... + 27121.

It is an arithmetic number, because the mean of its divisors is an integer number (81744201).

Almost surely, 2^326931601 is an apocalyptic number.

326931601 is the 9041-st decagonal number.

It is an amenable number.

326931601 is a deficient number, since it is larger than the sum of its proper divisors (45203).

326931601 is an equidigital number, since it uses as much as digits as its factorization.

326931601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45202.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 326931601 is about 18081.2499844452. The cubic root of 326931601 is about 688.8938384901.

The spelling of 326931601 in words is "three hundred twenty-six million, nine hundred thirty-one thousand, six hundred one".