206207106 has 64 divisors (see below), whose sum is σ = 482967552. Its totient is φ = 57480192.

The previous prime is 206207069. The next prime is 206207107. The reversal of 206207106 is 601702602.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (206207107) 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 31 ways as a sum of consecutive naturals, for example, 357090 + ... + 357666.

It is an arithmetic number, because the mean of its divisors is an integer number (7546368).

Almost surely, 2^206207106 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206207106, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241483776).

206207106 is an abundant number, since it is smaller than the sum of its proper divisors (276760446).

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

206207106 is a wasteful number, since it uses less digits than its factorization.

206207106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 206207106 is about 14359.9131612973. The cubic root of 206207106 is about 590.7919137106.

Adding to 206207106 its reverse (601702602), we get a palindrome (807909708).

The spelling of 206207106 in words is "two hundred six million, two hundred seven thousand, one hundred six".