8053421 has 2 divisors, whose sum is σ = 8053422. Its totient is φ = 8053420.

The previous prime is 8053417. The next prime is 8053429. The reversal of 8053421 is 1243508.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8008900 + 44521 = 2830^2 + 211^2 .

It is a cyclic number.

It is not a de Polignac number, because 8053421 - 2² = 8053417 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8053429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4026710 + 4026711.

It is an arithmetic number, because the mean of its divisors is an integer number (4026711).

Almost surely, 2^8053421 is an apocalyptic number.

It is an amenable number.

8053421 is a deficient number, since it is larger than the sum of its proper divisors (1).

8053421 is an equidigital number, since it uses as much as digits as its factorization.

8053421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 8053421 is about 2837.8549998194. The cubic root of 8053421 is about 200.4441877559. Note that the first 3 decimals are identical.

Adding to 8053421 its reverse (1243508), we get a palindrome (9296929).

The spelling of 8053421 in words is "eight million, fifty-three thousand, four hundred twenty-one".