326791601 has 4 divisors (see below), whose sum is σ = 327224052. Its totient is φ = 326359152.

The previous prime is 326791573. The next prime is 326791603. The reversal of 326791601 is 106197623.

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 230280625 + 96510976 = 15175^2 + 9824^2 .

It is a cyclic number.

It is not a de Polignac number, because 326791601 - 2⁶ = 326791537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (326791603) 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, 215090 + ... + 216603.

It is an arithmetic number, because the mean of its divisors is an integer number (81806013).

Almost surely, 2^326791601 is an apocalyptic number.

It is an amenable number.

326791601 is a deficient number, since it is larger than the sum of its proper divisors (432451).

326791601 is an equidigital number, since it uses as much as digits as its factorization.

326791601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432450.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 326791601 is about 18077.3781561376. The cubic root of 326791601 is about 688.7954907959.

The spelling of 326791601 in words is "three hundred twenty-six million, seven hundred ninety-one thousand, six hundred one".