485909 has 2 divisors, whose sum is σ = 485910. Its totient is φ = 485908.

The previous prime is 485899. The next prime is 485923. The reversal of 485909 is 909584.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 485809 + 100 = 697^2 + 10^2 .

It is a cyclic number.

It is not a de Polignac number, because 485909 - 2⁴ = 485893 is a prime.

It is a super-2 number, since 2×485909² = 472215112562, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (485959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242954 + 242955.

It is an arithmetic number, because the mean of its divisors is an integer number (242955).

2⁴⁸⁵⁹⁰⁹ is an apocalyptic number.

It is an amenable number.

485909 is a deficient number, since it is larger than the sum of its proper divisors (1).

485909 is an equidigital number, since it uses as much as digits as its factorization.

485909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 485909 is about 697.0717323203. The cubic root of 485909 is about 78.6173343704.

The spelling of 485909 in words is "four hundred eighty-five thousand, nine hundred nine".