6827305421 has 2 divisors, whose sum is σ = 6827305422. Its totient is φ = 6827305420.

The previous prime is 6827305403. The next prime is 6827305423. The reversal of 6827305421 is 1245037286.

It is a happy number.

6827305421 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4921022500 + 1906282921 = 70150^2 + 43661^2 .

It is a cyclic number.

It is not a de Polignac number, because 6827305421 - 2⁶ = 6827305357 is a prime.

It is a super-2 number, since 2×6827305421² = 93224198623231974482, which contains 22 as substring.

Together with 6827305423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6827305423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3413652710 + 3413652711.

It is an arithmetic number, because the mean of its divisors is an integer number (3413652711).

Almost surely, 2^6827305421 is an apocalyptic number.

It is an amenable number.

6827305421 is a deficient number, since it is larger than the sum of its proper divisors (1).

6827305421 is an equidigital number, since it uses as much as digits as its factorization.

6827305421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 6827305421 is about 82627.5100738247. The cubic root of 6827305421 is about 1897.0689267216.

The spelling of 6827305421 in words is "six billion, eight hundred twenty-seven million, three hundred five thousand, four hundred twenty-one".