206878 has 12 divisors (see below), whose sum is σ = 361152. Its totient is φ = 88620.

The previous prime is 206827. The next prime is 206879. The reversal of 206878 is 878602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206879) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 958 + ... + 1153.

It is an arithmetic number, because the mean of its divisors is an integer number (30096).

2²⁰⁶⁸⁷⁸ is an apocalyptic number.

206878 is a deficient number, since it is larger than the sum of its proper divisors (154274).

206878 is a wasteful number, since it uses less digits than its factorization.

206878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2127 (or 2120 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 206878 is about 454.8384328528. The cubic root of 206878 is about 59.1431933159.

The spelling of 206878 in words is "two hundred six thousand, eight hundred seventy-eight".