326742985 has 4 divisors (see below), whose sum is σ = 392091588. Its totient is φ = 261394384.

The previous prime is 326742961. The next prime is 326742989. The reversal of 326742985 is 589247623.

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 186486336 + 140256649 = 13656^2 + 11843^2 .

It is a cyclic number.

It is not a de Polignac number, because 326742985 - 2⁵ = 326742953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (326742989) 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 in 3 ways as a sum of consecutive naturals, for example, 32674294 + ... + 32674303.

It is an arithmetic number, because the mean of its divisors is an integer number (98022897).

Almost surely, 2^326742985 is an apocalyptic number.

It is an amenable number.

326742985 is a deficient number, since it is larger than the sum of its proper divisors (65348603).

326742985 is an equidigital number, since it uses as much as digits as its factorization.

326742985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65348602.

The product of its digits is 725760, while the sum is 46.

The square root of 326742985 is about 18076.0334421023. The cubic root of 326742985 is about 688.7613322861.

The spelling of 326742985 in words is "three hundred twenty-six million, seven hundred forty-two thousand, nine hundred eighty-five".