664299079 has 2 divisors, whose sum is σ = 664299080. Its totient is φ = 664299078.

The previous prime is 664299059. The next prime is 664299151. The reversal of 664299079 is 970992466.

664299079 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 is a cyclic number.

It is not a de Polignac number, because 664299079 - 2⁵ = 664299047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (664299029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332149539 + 332149540.

It is an arithmetic number, because the mean of its divisors is an integer number (332149540).

Almost surely, 2^664299079 is an apocalyptic number.

664299079 is a deficient number, since it is larger than the sum of its proper divisors (1).

664299079 is an equidigital number, since it uses as much as digits as its factorization.

664299079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1469664, while the sum is 52.

The square root of 664299079 is about 25774.0000581982. Note that the first 4 decimals coincide. The cubic root of 664299079 is about 872.5450989406.

The spelling of 664299079 in words is "six hundred sixty-four million, two hundred ninety-nine thousand, seventy-nine".