206909036 has 6 divisors (see below), whose sum is σ = 362090820. Its totient is φ = 103454516.

The previous prime is 206909033. The next prime is 206909063. The reversal of 206909036 is 630909602.

206909036 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×206909036² = 85622698356898592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 206908987 and 206909005.

It is not an unprimeable number, because it can be changed into a prime (206909033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25863626 + ... + 25863633.

It is an arithmetic number, because the mean of its divisors is an integer number (60348470).

Almost surely, 2^206909036 is an apocalyptic number.

It is an amenable number.

206909036 is a deficient number, since it is larger than the sum of its proper divisors (155181784).

206909036 is a wasteful number, since it uses less digits than its factorization.

206909036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51727263 (or 51727261 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 206909036 is about 14384.3330050441. Note that the first 3 decimals coincide. The cubic root of 206909036 is about 591.4615073748.

The spelling of 206909036 in words is "two hundred six million, nine hundred nine thousand, thirty-six".