206740485 has 96 divisors (see below), whose sum is σ = 446795520. Its totient is φ = 88833024.

The previous prime is 206740481. The next prime is 206740487. The reversal of 206740485 is 584047602.

It is not a de Polignac number, because 206740485 - 2² = 206740481 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206740481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 272727 + ... + 273483.

It is an arithmetic number, because the mean of its divisors is an integer number (4654120).

Almost surely, 2^206740485 is an apocalyptic number.

It is an amenable number.

206740485 is an abundant number, since it is smaller than the sum of its proper divisors (240055035).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206740485 is a wasteful number, since it uses less digits than its factorization.

206740485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812 (or 789 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 206740485 is about 14378.4729717728. The cubic root of 206740485 is about 591.3008594676.

The spelling of 206740485 in words is "two hundred six million, seven hundred forty thousand, four hundred eighty-five".