327816397 has 4 divisors (see below), whose sum is σ = 328154976. Its totient is φ = 327477820.

The previous prime is 327816383. The next prime is 327816421. The reversal of 327816397 is 793618723.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 793618723 = 61 ⋅13010143.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-327816397 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 (327816317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167833 + ... + 169774.

It is an arithmetic number, because the mean of its divisors is an integer number (82038744).

Almost surely, 2^327816397 is an apocalyptic number.

It is an amenable number.

327816397 is a deficient number, since it is larger than the sum of its proper divisors (338579).

327816397 is an equidigital number, since it uses as much as digits as its factorization.

327816397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338578.

The product of its digits is 381024, while the sum is 46.

The square root of 327816397 is about 18105.7006768587. The cubic root of 327816397 is about 689.5147445813.

The spelling of 327816397 in words is "three hundred twenty-seven million, eight hundred sixteen thousand, three hundred ninety-seven".