664462367 has 2 divisors, whose sum is σ = 664462368. Its totient is φ = 664462366.

The previous prime is 664462361. The next prime is 664462397. The reversal of 664462367 is 763264466.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 664462367 - 2¹⁴ = 664445983 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 (664462361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332231183 + 332231184.

It is an arithmetic number, because the mean of its divisors is an integer number (332231184).

Almost surely, 2^664462367 is an apocalyptic number.

664462367 is a deficient number, since it is larger than the sum of its proper divisors (1).

664462367 is an equidigital number, since it uses as much as digits as its factorization.

664462367 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 44.

The square root of 664462367 is about 25777.1675519247. The cubic root of 664462367 is about 872.6165850510.

The spelling of 664462367 in words is "six hundred sixty-four million, four hundred sixty-two thousand, three hundred sixty-seven".