206228899 has 2 divisors, whose sum is σ = 206228900. Its totient is φ = 206228898.

The previous prime is 206228863. The next prime is 206228909. The reversal of 206228899 is 998822602.

It is a happy number.

206228899 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206228899 is a prime.

It is not a weakly prime, because it can be changed into another prime (206228699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103114449 + 103114450.

It is an arithmetic number, because the mean of its divisors is an integer number (103114450).

Almost surely, 2^206228899 is an apocalyptic number.

206228899 is a deficient number, since it is larger than the sum of its proper divisors (1).

206228899 is an equidigital number, since it uses as much as digits as its factorization.

206228899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 206228899 is about 14360.6719550305. The cubic root of 206228899 is about 590.8127255939.

The spelling of 206228899 in words is "two hundred six million, two hundred twenty-eight thousand, eight hundred ninety-nine".