64026481 has 2 divisors, whose sum is σ = 64026482. Its totient is φ = 64026480.

The previous prime is 64026433. The next prime is 64026497. The reversal of 64026481 is 18462046.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63760225 + 266256 = 7985^2 + 516^2 .

It is a cyclic number.

It is not a de Polignac number, because 64026481 - 2⁷ = 64026353 is a prime.

It is a super-2 number, since 2×64026481² = 8198780538486722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64026401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32013240 + 32013241.

It is an arithmetic number, because the mean of its divisors is an integer number (32013241).

Almost surely, 2^64026481 is an apocalyptic number.

It is an amenable number.

64026481 is a deficient number, since it is larger than the sum of its proper divisors (1).

64026481 is an equidigital number, since it uses as much as digits as its factorization.

64026481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 64026481 is about 8001.6548913334. The cubic root of 64026481 is about 400.0551611428.

The spelling of 64026481 in words is "sixty-four million, twenty-six thousand, four hundred eighty-one".