486729909 has 24 divisors (see below), whose sum is σ = 714342720. Its totient is φ = 319298112.

The previous prime is 486729883. The next prime is 486729911. The reversal of 486729909 is 909927684.

486729909 is a `hidden beast` number, since 486 + 72 + 9 + 90 + 9 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-486729909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (486729949) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 550782 + ... + 551664.

It is an arithmetic number, because the mean of its divisors is an integer number (29764280).

Almost surely, 2^486729909 is an apocalyptic number.

It is an amenable number.

486729909 is a deficient number, since it is larger than the sum of its proper divisors (227612811).

486729909 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (486729908) it forms an eRAP, since the sums of their prime factors are consecutive (1800 and 1801).

With its predecessor (486729908) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (1798).

486729909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1801 (or 1798 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The square root of 486729909 is about 22061.9561462713. The cubic root of 486729909 is about 786.6158227657.

The spelling of 486729909 in words is "four hundred eighty-six million, seven hundred twenty-nine thousand, nine hundred nine".