326203613 has 4 divisors (see below), whose sum is σ = 326275968. Its totient is φ = 326131260.

The previous prime is 326203597. The next prime is 326203673. The reversal of 326203613 is 316302623.

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 326203613 - 2⁴ = 326203597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326203673) 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, 28931 + ... + 38592.

It is an arithmetic number, because the mean of its divisors is an integer number (81568992).

Almost surely, 2^326203613 is an apocalyptic number.

It is an amenable number.

326203613 is a deficient number, since it is larger than the sum of its proper divisors (72355).

326203613 is an equidigital number, since it uses as much as digits as its factorization.

326203613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72354.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 326203613 is about 18061.1077456506. The cubic root of 326203613 is about 688.3821319160.

The spelling of 326203613 in words is "three hundred twenty-six million, two hundred three thousand, six hundred thirteen".