664462037 has 2 divisors, whose sum is σ = 664462038. Its totient is φ = 664462036.

The previous prime is 664462027. The next prime is 664462063. The reversal of 664462037 is 730264466.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 409293361 + 255168676 = 20231^2 + 15974^2 .

It is a cyclic number.

It is not a de Polignac number, because 664462037 - 2¹⁴ = 664445653 is a prime.

It is a super-2 number, since 2×664462037² = 883019597228378738, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (664462027) 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, 332231018 + 332231019.

It is an arithmetic number, because the mean of its divisors is an integer number (332231019).

Almost surely, 2^664462037 is an apocalyptic number.

It is an amenable number.

664462037 is a deficient number, since it is larger than the sum of its proper divisors (1).

664462037 is an equidigital number, since it uses as much as digits as its factorization.

664462037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 38.

The square root of 664462037 is about 25777.1611509103. The cubic root of 664462037 is about 872.6164405916.

The spelling of 664462037 in words is "six hundred sixty-four million, four hundred sixty-two thousand, thirty-seven".