485675721 has 6 divisors (see below), whose sum is σ = 701531610. Its totient is φ = 323783808.

The previous prime is 485675719. The next prime is 485675747. The reversal of 485675721 is 127576584.

It can be written as a sum of positive squares in only one way, i.e., 475022025 + 10653696 = 21795^2 + 3264^2 .

It is not a de Polignac number, because 485675721 - 2¹ = 485675719 is a prime.

It is not an unprimeable number, because it can be changed into a prime (485675711) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26981976 + ... + 26981993.

It is an arithmetic number, because the mean of its divisors is an integer number (116921935).

Almost surely, 2^485675721 is an apocalyptic number.

It is an amenable number.

485675721 is a deficient number, since it is larger than the sum of its proper divisors (215855889).

485675721 is a wasteful number, since it uses less digits than its factorization.

485675721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53963975 (or 53963972 counting only the distinct ones).

The product of its digits is 470400, while the sum is 45.

The square root of 485675721 is about 22038.0516607072. The cubic root of 485675721 is about 786.0475128126.

The spelling of 485675721 in words is "four hundred eighty-five million, six hundred seventy-five thousand, seven hundred twenty-one".