485821609 has 24 divisors (see below), whose sum is σ = 604500288. Its totient is φ = 380207520.

The previous prime is 485821607. The next prime is 485821613. The reversal of 485821609 is 906128584.

It is a happy number.

It is not a de Polignac number, because 485821609 - 2¹ = 485821607 is a prime.

It is not an unprimeable number, because it can be changed into a prime (485821603) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1467574 + ... + 1467904.

It is an arithmetic number, because the mean of its divisors is an integer number (25187512).

Almost surely, 2^485821609 is an apocalyptic number.

It is an amenable number.

485821609 is a deficient number, since it is larger than the sum of its proper divisors (118678679).

485821609 is a wasteful number, since it uses less digits than its factorization.

485821609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605 (or 478 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 485821609 is about 22041.3613236569. The cubic root of 485821609 is about 786.1262096429.

The spelling of 485821609 in words is "four hundred eighty-five million, eight hundred twenty-one thousand, six hundred nine".