464809 has 2 divisors, whose sum is σ = 464810. Its totient is φ = 464808.

The previous prime is 464803. The next prime is 464813. The reversal of 464809 is 908464.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 451584 + 13225 = 672^2 + 115^2 .

It is a cyclic number.

It is not a de Polignac number, because 464809 - 2³ = 464801 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (464801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232404 + 232405.

It is an arithmetic number, because the mean of its divisors is an integer number (232405).

2⁴⁶⁴⁸⁰⁹ is an apocalyptic number.

It is an amenable number.

464809 is a deficient number, since it is larger than the sum of its proper divisors (1).

464809 is an equidigital number, since it uses as much as digits as its factorization.

464809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 464809 is about 681.7690224702. The cubic root of 464809 is about 77.4625000680.

The spelling of 464809 in words is "four hundred sixty-four thousand, eight hundred nine".