466215209 has 2 divisors, whose sum is σ = 466215210. Its totient is φ = 466215208.

The previous prime is 466215203. The next prime is 466215229. The reversal of 466215209 is 902512664.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 424483609 + 41731600 = 20603^2 + 6460^2 .

It is a cyclic number.

It is not a de Polignac number, because 466215209 - 2⁴ = 466215193 is a prime.

It is a super-2 number, since 2×466215209² = 434713242205827362, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (466215203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 233107604 + 233107605.

It is an arithmetic number, because the mean of its divisors is an integer number (233107605).

Almost surely, 2^466215209 is an apocalyptic number.

It is an amenable number.

466215209 is a deficient number, since it is larger than the sum of its proper divisors (1).

466215209 is an equidigital number, since it uses as much as digits as its factorization.

466215209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 466215209 is about 21592.0172517530. The cubic root of 466215209 is about 775.4053843087.

The spelling of 466215209 in words is "four hundred sixty-six million, two hundred fifteen thousand, two hundred nine".