206620868 has 24 divisors (see below), whose sum is σ = 378913920. Its totient is φ = 98398080.

The previous prime is 206620867. The next prime is 206620927. The reversal of 206620868 is 868026602.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (206620867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17513 + ... + 26831.

It is an arithmetic number, because the mean of its divisors is an integer number (15788080).

Almost surely, 2^206620868 is an apocalyptic number.

It is an amenable number.

206620868 is a deficient number, since it is larger than the sum of its proper divisors (172293052).

206620868 is a wasteful number, since it uses less digits than its factorization.

206620868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9587 (or 9585 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 206620868 is about 14374.3127835733. The cubic root of 206620868 is about 591.1867981436.

The spelling of 206620868 in words is "two hundred six million, six hundred twenty thousand, eight hundred sixty-eight".