206326361 has 4 divisors (see below), whose sum is σ = 208152372. Its totient is φ = 204500352.

The previous prime is 206326349. The next prime is 206326369. The reversal of 206326361 is 163623602.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53655625 + 152670736 = 7325^2 + 12356^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206326361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206326369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 912836 + ... + 913061.

It is an arithmetic number, because the mean of its divisors is an integer number (52038093).

Almost surely, 2^206326361 is an apocalyptic number.

It is an amenable number.

206326361 is a deficient number, since it is larger than the sum of its proper divisors (1826011).

206326361 is a wasteful number, since it uses less digits than its factorization.

206326361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1826010.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 206326361 is about 14364.0649190958. The cubic root of 206326361 is about 590.9057819366.

Adding to 206326361 its reverse (163623602), we get a palindrome (369949963).

The spelling of 206326361 in words is "two hundred six million, three hundred twenty-six thousand, three hundred sixty-one".