1816327297 has 8 divisors (see below), whose sum is σ = 1827671040. Its totient is φ = 1805003040.

The previous prime is 1816327291. The next prime is 1816327301. The reversal of 1816327297 is 7927236181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1816327297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1816327291) 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 7 ways as a sum of consecutive naturals, for example, 211428 + ... + 219850.

It is an arithmetic number, because the mean of its divisors is an integer number (228458880).

Almost surely, 2^1816327297 is an apocalyptic number.

It is an amenable number.

1816327297 is a deficient number, since it is larger than the sum of its proper divisors (11343743).

1816327297 is a wasteful number, since it uses less digits than its factorization.

1816327297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9743.

The product of its digits is 254016, while the sum is 46.

The square root of 1816327297 is about 42618.3915346415. The cubic root of 1816327297 is about 1220.1073311018.

The spelling of 1816327297 in words is "one billion, eight hundred sixteen million, three hundred twenty-seven thousand, two hundred ninety-seven".