6234445721 has 8 divisors (see below), whose sum is σ = 7317650880. Its totient is φ = 5199383088.

The previous prime is 6234445669. The next prime is 6234445729. The reversal of 6234445721 is 1275444326.

It is a happy number.

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-6234445721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6234445729) 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, 12035351 + ... + 12035868.

It is an arithmetic number, because the mean of its divisors is an integer number (914706360).

Almost surely, 2^6234445721 is an apocalyptic number.

It is an amenable number.

6234445721 is a deficient number, since it is larger than the sum of its proper divisors (1083205159).

6234445721 is a wasteful number, since it uses less digits than its factorization.

6234445721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24071263.

The product of its digits is 161280, while the sum is 38.

The square root of 6234445721 is about 78958.5063245247. The cubic root of 6234445721 is about 1840.4864145063.

The spelling of 6234445721 in words is "six billion, two hundred thirty-four million, four hundred forty-five thousand, seven hundred twenty-one".