486689521 has 4 divisors (see below), whose sum is σ = 486745200. Its totient is φ = 486633844.

The previous prime is 486689473. The next prime is 486689543. The reversal of 486689521 is 125986684.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 486689521 - 2¹¹ = 486687473 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (486689561) 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, 11551 + ... + 33268.

It is an arithmetic number, because the mean of its divisors is an integer number (121686300).

Almost surely, 2^486689521 is an apocalyptic number.

It is an amenable number.

486689521 is a deficient number, since it is larger than the sum of its proper divisors (55679).

486689521 is a wasteful number, since it uses less digits than its factorization.

486689521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55678.

The product of its digits is 829440, while the sum is 49.

The square root of 486689521 is about 22061.0407959371. The cubic root of 486689521 is about 786.5940648269.

The spelling of 486689521 in words is "four hundred eighty-six million, six hundred eighty-nine thousand, five hundred twenty-one".