479683521 has 6 divisors (see below), whose sum is σ = 692876210. Its totient is φ = 319789008.

The previous prime is 479683517. The next prime is 479683537. The reversal of 479683521 is 125386974.

479683521 is a `hidden beast` number, since 47 + 9 + 6 + 83 + 521 = 666.

It can be written as a sum of positive squares in only one way, i.e., 420701121 + 58982400 = 20511^2 + 7680^2 .

It is not a de Polignac number, because 479683521 - 2² = 479683517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (479683541) 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, 26649076 + ... + 26649093.

Almost surely, 2^479683521 is an apocalyptic number.

It is an amenable number.

479683521 is a deficient number, since it is larger than the sum of its proper divisors (213192689).

479683521 is a wasteful number, since it uses less digits than its factorization.

479683521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53298175 (or 53298172 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 479683521 is about 21901.6784973207. The cubic root of 479683521 is about 782.8014107624.

The spelling of 479683521 in words is "four hundred seventy-nine million, six hundred eighty-three thousand, five hundred twenty-one".