206504983 has 2 divisors, whose sum is σ = 206504984. Its totient is φ = 206504982.

The previous prime is 206504951. The next prime is 206505007. The reversal of 206504983 is 389405602.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 206504983 - 2⁵ = 206504951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206504923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103252491 + 103252492.

It is an arithmetic number, because the mean of its divisors is an integer number (103252492).

Almost surely, 2^206504983 is an apocalyptic number.

206504983 is a deficient number, since it is larger than the sum of its proper divisors (1).

206504983 is an equidigital number, since it uses as much as digits as its factorization.

206504983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 206504983 is about 14370.2812428985. The cubic root of 206504983 is about 591.0762534943.

The spelling of 206504983 in words is "two hundred six million, five hundred four thousand, nine hundred eighty-three".