206764 has 6 divisors (see below), whose sum is σ = 361844. Its totient is φ = 103380.

The previous prime is 206749. The next prime is 206779. The reversal of 206764 is 467602.

It is an interprime number because it is at equal distance from previous prime (206749) and next prime (206779).

It is a plaindrome in base 9.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25842 + ... + 25849.

2²⁰⁶⁷⁶⁴ is an apocalyptic number.

It is an amenable number.

206764 is a deficient number, since it is larger than the sum of its proper divisors (155080).

206764 is a wasteful number, since it uses less digits than its factorization.

206764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51695 (or 51693 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 206764 is about 454.7130963586. The cubic root of 206764 is about 59.1323277126.

The spelling of 206764 in words is "two hundred six thousand, seven hundred sixty-four".