207720083 has 2 divisors, whose sum is σ = 207720084. Its totient is φ = 207720082.

The previous prime is 207720049. The next prime is 207720089. The reversal of 207720083 is 380027702.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 207720083 - 2¹⁰ = 207719059 is a prime.

It is not a weakly prime, because it can be changed into another prime (207720089) 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, 103860041 + 103860042.

It is an arithmetic number, because the mean of its divisors is an integer number (103860042).

Almost surely, 2^207720083 is an apocalyptic number.

207720083 is a deficient number, since it is larger than the sum of its proper divisors (1).

207720083 is an equidigital number, since it uses as much as digits as its factorization.

207720083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 207720083 is about 14412.4974588029. The cubic root of 207720083 is about 592.2333081428.

Adding to 207720083 its reverse (380027702), we get a palindrome (587747785).

The spelling of 207720083 in words is "two hundred seven million, seven hundred twenty thousand, eighty-three".