466664621 has 2 divisors, whose sum is σ = 466664622. Its totient is φ = 466664620.

The previous prime is 466664593. The next prime is 466664651. The reversal of 466664621 is 126466664.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 431392900 + 35271721 = 20770^2 + 5939^2 .

It is a cyclic number.

It is not a de Polignac number, because 466664621 - 2¹⁰ = 466663597 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 (466664651) 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, 233332310 + 233332311.

It is an arithmetic number, because the mean of its divisors is an integer number (233332311).

Almost surely, 2^466664621 is an apocalyptic number.

It is an amenable number.

466664621 is a deficient number, since it is larger than the sum of its proper divisors (1).

466664621 is an equidigital number, since it uses as much as digits as its factorization.

466664621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 41.

The square root of 466664621 is about 21602.4216466580. The cubic root of 466664621 is about 775.6544571013.

The spelling of 466664621 in words is "four hundred sixty-six million, six hundred sixty-four thousand, six hundred twenty-one".