206392673 has 4 divisors (see below), whose sum is σ = 206422020. Its totient is φ = 206363328.

The previous prime is 206392661. The next prime is 206392721. The reversal of 206392673 is 376293602.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 129777664 + 76615009 = 11392^2 + 8753^2 .

It is a cyclic number.

It is not a de Polignac number, because 206392673 - 2⁴ = 206392657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206392643) 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 in 3 ways as a sum of consecutive naturals, for example, 2861 + ... + 20517.

It is an arithmetic number, because the mean of its divisors is an integer number (51605505).

Almost surely, 2^206392673 is an apocalyptic number.

It is an amenable number.

206392673 is a deficient number, since it is larger than the sum of its proper divisors (29347).

206392673 is a wasteful number, since it uses less digits than its factorization.

206392673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29346.

The product of its (nonzero) digits is 81648, while the sum is 38.

The square root of 206392673 is about 14366.3729939049. The cubic root of 206392673 is about 590.9690796283.

The spelling of 206392673 in words is "two hundred six million, three hundred ninety-two thousand, six hundred seventy-three".