485285821 has 16 divisors (see below), whose sum is σ = 527117760. Its totient is φ = 445201920.

The previous prime is 485285813. The next prime is 485285833. The reversal of 485285821 is 128582584.

It is not a de Polignac number, because 485285821 - 2³ = 485285813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (485289821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158061 + ... + 161101.

It is an arithmetic number, because the mean of its divisors is an integer number (32944860).

Almost surely, 2^485285821 is an apocalyptic number.

It is an amenable number.

485285821 is a deficient number, since it is larger than the sum of its proper divisors (41831939).

485285821 is a wasteful number, since it uses less digits than its factorization.

485285821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3324.

The product of its digits is 204800, while the sum is 43.

The square root of 485285821 is about 22029.2038212914. The cubic root of 485285821 is about 785.8371104375.

The spelling of 485285821 in words is "four hundred eighty-five million, two hundred eighty-five thousand, eight hundred twenty-one".