485386409 has 2 divisors, whose sum is σ = 485386410. Its totient is φ = 485386408.

The previous prime is 485386403. The next prime is 485386469. The reversal of 485386409 is 904683584.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 484132009 + 1254400 = 22003^2 + 1120^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-485386409 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (485386403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242693204 + 242693205.

It is an arithmetic number, because the mean of its divisors is an integer number (242693205).

Almost surely, 2^485386409 is an apocalyptic number.

It is an amenable number.

485386409 is a deficient number, since it is larger than the sum of its proper divisors (1).

485386409 is an equidigital number, since it uses as much as digits as its factorization.

485386409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 829440, while the sum is 47.

The square root of 485386409 is about 22031.4867632668. The cubic root of 485386409 is about 785.8914016881.

The spelling of 485386409 in words is "four hundred eighty-five million, three hundred eighty-six thousand, four hundred nine".