64530629 has 2 divisors, whose sum is σ = 64530630. Its totient is φ = 64530628.

The previous prime is 64530541. The next prime is 64530643. The reversal of 64530629 is 92603546.

64530629 is digitally balanced in base 2, 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., 64480900 + 49729 = 8030^2 + 223^2 .

It is a cyclic number.

It is not a de Polignac number, because 64530629 - 2¹² = 64526533 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64530649) 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, 32265314 + 32265315.

It is an arithmetic number, because the mean of its divisors is an integer number (32265315).

Almost surely, 2^64530629 is an apocalyptic number.

It is an amenable number.

64530629 is a deficient number, since it is larger than the sum of its proper divisors (1).

64530629 is an equidigital number, since it uses as much as digits as its factorization.

64530629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 64530629 is about 8033.0958540279. The cubic root of 64530629 is about 401.1024358798.

The spelling of 64530629 in words is "sixty-four million, five hundred thirty thousand, six hundred twenty-nine".