6398288321 has 8 divisors (see below), whose sum is σ = 6450862080. Its totient is φ = 6345749088.

The previous prime is 6398288291. The next prime is 6398288341. The reversal of 6398288321 is 1238828936.

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

It is a cyclic number.

It is not a de Polignac number, because 6398288321 - 2⁶ = 6398288257 is a prime.

It is a super-6 number, since 6×6398288321⁶ (a number of 60 digits) contains 666666 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6398288321.

It is not an unprimeable number, because it can be changed into a prime (6398288341) 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 7 ways as a sum of consecutive naturals, for example, 471980 + ... + 485346.

It is an arithmetic number, because the mean of its divisors is an integer number (806357760).

Almost surely, 2^6398288321 is an apocalyptic number.

It is an amenable number.

6398288321 is a deficient number, since it is larger than the sum of its proper divisors (52573759).

6398288321 is a wasteful number, since it uses less digits than its factorization.

6398288321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17263.

The product of its digits is 995328, while the sum is 50.

The square root of 6398288321 is about 79989.3012908601. The cubic root of 6398288321 is about 1856.4699997258.

The spelling of 6398288321 in words is "six billion, three hundred ninety-eight million, two hundred eighty-eight thousand, three hundred twenty-one".