206463197 has 2 divisors, whose sum is σ = 206463198. Its totient is φ = 206463196.

The previous prime is 206463137. The next prime is 206463211. The reversal of 206463197 is 791364602.

206463197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150945796 + 55517401 = 12286^2 + 7451^2 .

It is a cyclic number.

It is not a de Polignac number, because 206463197 - 2⁸ = 206462941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 206463197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206463107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103231598 + 103231599.

It is an arithmetic number, because the mean of its divisors is an integer number (103231599).

Almost surely, 2^206463197 is an apocalyptic number.

It is an amenable number.

206463197 is a deficient number, since it is larger than the sum of its proper divisors (1).

206463197 is an equidigital number, since it uses as much as digits as its factorization.

206463197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 206463197 is about 14368.8272659950. The cubic root of 206463197 is about 591.0363829820.

The spelling of 206463197 in words is "two hundred six million, four hundred sixty-three thousand, one hundred ninety-seven".