206928485 has 8 divisors (see below), whose sum is σ = 256876920. Its totient is φ = 159834304.

The previous prime is 206928481. The next prime is 206928509. The reversal of 206928485 is 584829602.

It can be written as a sum of positive squares in 4 ways, for example, as 80748196 + 126180289 = 8986^2 + 11233^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 206928485 - 2² = 206928481 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206928481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 713402 + ... + 713691.

It is an arithmetic number, because the mean of its divisors is an integer number (32109615).

Almost surely, 2^206928485 is an apocalyptic number.

It is an amenable number.

206928485 is a deficient number, since it is larger than the sum of its proper divisors (49948435).

206928485 is a wasteful number, since it uses less digits than its factorization.

206928485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1427127.

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 206928485 is about 14385.0090371887. The cubic root of 206928485 is about 591.4800388265.

The spelling of 206928485 in words is "two hundred six million, nine hundred twenty-eight thousand, four hundred eighty-five".