206378764 has 12 divisors (see below), whose sum is σ = 362450088. Its totient is φ = 102821600.

The previous prime is 206378743. The next prime is 206378771. The reversal of 206378764 is 467873602.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 206378764.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90682 + ... + 92929.

It is an arithmetic number, because the mean of its divisors is an integer number (30204174).

Almost surely, 2^206378764 is an apocalyptic number.

It is an amenable number.

206378764 is a deficient number, since it is larger than the sum of its proper divisors (156071324).

206378764 is a wasteful number, since it uses less digits than its factorization.

206378764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183896 (or 183894 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 43.

The square root of 206378764 is about 14365.8889039279. Note that the first 3 decimals coincide. The cubic root of 206378764 is about 590.9558040059.

The spelling of 206378764 in words is "two hundred six million, three hundred seventy-eight thousand, seven hundred sixty-four".