485689481 has 4 divisors (see below), whose sum is σ = 489987732. Its totient is φ = 481391232.

The previous prime is 485689447. The next prime is 485689511. The reversal of 485689481 is 184986584.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 157753600 + 327935881 = 12560^2 + 18109^2 .

It is a cyclic number.

It is not a de Polignac number, because 485689481 - 2¹⁰ = 485688457 is a prime.

It is a super-2 number, since 2×485689481² = 471788543908098722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (485689081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2148956 + ... + 2149181.

It is an arithmetic number, because the mean of its divisors is an integer number (122496933).

Almost surely, 2^485689481 is an apocalyptic number.

It is an amenable number.

485689481 is a deficient number, since it is larger than the sum of its proper divisors (4298251).

485689481 is a wasteful number, since it uses less digits than its factorization.

485689481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4298250.

The product of its digits is 2211840, while the sum is 53.

The square root of 485689481 is about 22038.3638458031. The cubic root of 485689481 is about 786.0549360865.

The spelling of 485689481 in words is "four hundred eighty-five million, six hundred eighty-nine thousand, four hundred eighty-one".