206073 has 12 divisors (see below), whose sum is σ = 340288. Its totient is φ = 117720.

The previous prime is 206069. The next prime is 206077. The reversal of 206073 is 370602.

It is an interprime number because it is at equal distance from previous prime (206069) and next prime (206077).

It is not a de Polignac number, because 206073 - 2² = 206069 is a prime.

It is a super-3 number, since 3×206073³ = 26253338333133051, which contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

206073 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (206077) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1573 + ... + 1698.

2²⁰⁶⁰⁷³ is an apocalyptic number.

It is an amenable number.

206073 is a deficient number, since it is larger than the sum of its proper divisors (134215).

206073 is a wasteful number, since it uses less digits than its factorization.

206073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3284 (or 3281 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 206073 is about 453.9526407016. The cubic root of 206073 is about 59.0663812852.

Adding to 206073 its reverse (370602), we get a palindrome (576675).

The spelling of 206073 in words is "two hundred six thousand, seventy-three".