6344209321 has 8 divisors (see below), whose sum is σ = 6434681544. Its totient is φ = 6253833600.

The previous prime is 6344209283. The next prime is 6344209337. The reversal of 6344209321 is 1239024436.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 936666025 + 5407543296 = 30605^2 + 73536^2 .

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 6344209321 - 2²³ = 6335820713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6344209381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113871 + ... + 160171.

It is an arithmetic number, because the mean of its divisors is an integer number (804335193).

Almost surely, 2^6344209321 is an apocalyptic number.

It is an amenable number.

6344209321 is a deficient number, since it is larger than the sum of its proper divisors (90472223).

6344209321 is a wasteful number, since it uses less digits than its factorization.

6344209321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48251.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 6344209321 is about 79650.5450138290. The cubic root of 6344209321 is about 1851.2248349586.

The spelling of 6344209321 in words is "six billion, three hundred forty-four million, two hundred nine thousand, three hundred twenty-one".