206407 has 2 divisors, whose sum is σ = 206408. Its totient is φ = 206406.

The previous prime is 206399. The next prime is 206411. The reversal of 206407 is 704602.

206407 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 not a de Polignac number, because 206407 - 2³ = 206399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103203 + 103204.

It is an arithmetic number, because the mean of its divisors is an integer number (103204).

2²⁰⁶⁴⁰⁷ is an apocalyptic number.

206407 is a deficient number, since it is larger than the sum of its proper divisors (1).

206407 is an equidigital number, since it uses as much as digits as its factorization.

206407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 206407 is about 454.3203715441. The cubic root of 206407 is about 59.0982753593.

The spelling of 206407 in words is "two hundred six thousand, four hundred seven".