206087485 has 8 divisors (see below), whose sum is σ = 255832920. Its totient is φ = 159184704.

The previous prime is 206087477. The next prime is 206087489. The reversal of 206087485 is 584780602.

It can be written as a sum of positive squares in 4 ways, for example, as 28611801 + 177475684 = 5349^2 + 13322^2 .

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 206087485 - 2³ = 206087477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206087489) 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 7 ways as a sum of consecutive naturals, for example, 710502 + ... + 710791.

It is an arithmetic number, because the mean of its divisors is an integer number (31979115).

Almost surely, 2^206087485 is an apocalyptic number.

It is an amenable number.

206087485 is a deficient number, since it is larger than the sum of its proper divisors (49745435).

206087485 is a wasteful number, since it uses less digits than its factorization.

206087485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421327.

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 206087485 is about 14355.7474552877. The cubic root of 206087485 is about 590.6776519040.

The spelling of 206087485 in words is "two hundred six million, eighty-seven thousand, four hundred eighty-five".