206762641 has 2 divisors, whose sum is σ = 206762642. Its totient is φ = 206762640.

The previous prime is 206762629. The next prime is 206762659. The reversal of 206762641 is 146267602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204375616 + 2387025 = 14296^2 + 1545^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206762641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 206762597 and 206762606.

It is not a weakly prime, because it can be changed into another prime (206762741) 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 as a sum of consecutive naturals, namely, 103381320 + 103381321.

It is an arithmetic number, because the mean of its divisors is an integer number (103381321).

Almost surely, 2^206762641 is an apocalyptic number.

It is an amenable number.

206762641 is a deficient number, since it is larger than the sum of its proper divisors (1).

206762641 is an equidigital number, since it uses as much as digits as its factorization.

206762641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 206762641 is about 14379.2434084690. The cubic root of 206762641 is about 591.3219815907.

The spelling of 206762641 in words is "two hundred six million, seven hundred sixty-two thousand, six hundred forty-one".