464271209 has 2 divisors, whose sum is σ = 464271210. Its totient is φ = 464271208.

The previous prime is 464271187. The next prime is 464271211. The reversal of 464271209 is 902172464.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 405901609 + 58369600 = 20147^2 + 7640^2 .

It is a cyclic number.

It is not a de Polignac number, because 464271209 - 2⁸ = 464270953 is a prime.

Together with 464271211, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (464271239) 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, 232135604 + 232135605.

It is an arithmetic number, because the mean of its divisors is an integer number (232135605).

Almost surely, 2^464271209 is an apocalyptic number.

It is an amenable number.

464271209 is a deficient number, since it is larger than the sum of its proper divisors (1).

464271209 is an equidigital number, since it uses as much as digits as its factorization.

464271209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 464271209 is about 21546.9535897769. The cubic root of 464271209 is about 774.3261344631.

The spelling of 464271209 in words is "four hundred sixty-four million, two hundred seventy-one thousand, two hundred nine".