206924819 has 2 divisors, whose sum is σ = 206924820. Its totient is φ = 206924818.

The previous prime is 206924807. The next prime is 206924863. The reversal of 206924819 is 918429602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 206924819 - 2⁴ = 206924803 is a prime.

It is a super-2 number, since 2×206924819² = 85635761436365522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (206924519) 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, 103462409 + 103462410.

It is an arithmetic number, because the mean of its divisors is an integer number (103462410).

Almost surely, 2^206924819 is an apocalyptic number.

206924819 is a deficient number, since it is larger than the sum of its proper divisors (1).

206924819 is an equidigital number, since it uses as much as digits as its factorization.

206924819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 206924819 is about 14384.8816123039. The cubic root of 206924819 is about 591.4765458667.

The spelling of 206924819 in words is "two hundred six million, nine hundred twenty-four thousand, eight hundred nineteen".