326874721 has 2 divisors, whose sum is σ = 326874722. Its totient is φ = 326874720.

The previous prime is 326874719. The next prime is 326874791. The reversal of 326874721 is 127478623.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 202663696 + 124211025 = 14236^2 + 11145^2 .

It is a cyclic number.

It is not a de Polignac number, because 326874721 - 2¹ = 326874719 is a prime.

Together with 326874719, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (326874701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163437360 + 163437361.

It is an arithmetic number, because the mean of its divisors is an integer number (163437361).

Almost surely, 2^326874721 is an apocalyptic number.

It is an amenable number.

326874721 is a deficient number, since it is larger than the sum of its proper divisors (1).

326874721 is an equidigital number, since it uses as much as digits as its factorization.

326874721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112896, while the sum is 40.

The square root of 326874721 is about 18079.6770159204. The cubic root of 326874721 is about 688.8538846138.

The spelling of 326874721 in words is "three hundred twenty-six million, eight hundred seventy-four thousand, seven hundred twenty-one".