327621712247 has 4 divisors (see below), whose sum is σ = 344864960280. Its totient is φ = 310378464216.

The previous prime is 327621712217. The next prime is 327621712283. The reversal of 327621712247 is 742217126723.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 327621712247 - 2¹⁸ = 327621450103 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 327621712198 and 327621712207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (327621712217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8621623988 + ... + 8621624025.

It is an arithmetic number, because the mean of its divisors is an integer number (86216240070).

Almost surely, 2^327621712247 is an apocalyptic number.

327621712247 is a deficient number, since it is larger than the sum of its proper divisors (17243248033).

327621712247 is a wasteful number, since it uses less digits than its factorization.

327621712247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17243248032.

The product of its digits is 395136, while the sum is 44.

The spelling of 327621712247 in words is "three hundred twenty-seven billion, six hundred twenty-one million, seven hundred twelve thousand, two hundred forty-seven".