64053421 has 2 divisors, whose sum is σ = 64053422. Its totient is φ = 64053420.

The previous prime is 64053383. The next prime is 64053463. The reversal of 64053421 is 12435046.

64053421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51194025 + 12859396 = 7155^2 + 3586^2 .

It is a cyclic number.

It is not a de Polignac number, because 64053421 - 2⁷ = 64053293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64050421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32026710 + 32026711.

It is an arithmetic number, because the mean of its divisors is an integer number (32026711).

Almost surely, 2^64053421 is an apocalyptic number.

It is an amenable number.

64053421 is a deficient number, since it is larger than the sum of its proper divisors (1).

64053421 is an equidigital number, since it uses as much as digits as its factorization.

64053421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 64053421 is about 8003.3381160613. The cubic root of 64053421 is about 400.1112627986. Note that the first 3 decimals are identical.

Adding to 64053421 its reverse (12435046), we get a palindrome (76488467).

The spelling of 64053421 in words is "sixty-four million, fifty-three thousand, four hundred twenty-one".