664848029 has 2 divisors, whose sum is σ = 664848030. Its totient is φ = 664848028.

The previous prime is 664847999. The next prime is 664848071. The reversal of 664848029 is 920848466.

664848029 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., 621155929 + 43692100 = 24923^2 + 6610^2 .

It is a cyclic number.

It is not a de Polignac number, because 664848029 - 2¹⁶ = 664782493 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 (664848629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332424014 + 332424015.

It is an arithmetic number, because the mean of its divisors is an integer number (332424015).

Almost surely, 2^664848029 is an apocalyptic number.

It is an amenable number.

664848029 is a deficient number, since it is larger than the sum of its proper divisors (1).

664848029 is an equidigital number, since it uses as much as digits as its factorization.

664848029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 663552, while the sum is 47.

The square root of 664848029 is about 25784.6471567869. The cubic root of 664848029 is about 872.7853781412.

The spelling of 664848029 in words is "six hundred sixty-four million, eight hundred forty-eight thousand, twenty-nine".