206397716 has 24 divisors (see below), whose sum is σ = 413965440. Its totient is φ = 88205472.

The previous prime is 206397689. The next prime is 206397767. The reversal of 206397716 is 617793602.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215 + ... + 20318.

It is an arithmetic number, because the mean of its divisors is an integer number (17248560).

Almost surely, 2^206397716 is an apocalyptic number.

It is an amenable number.

206397716 is an abundant number, since it is smaller than the sum of its proper divisors (207567724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206397716 is a wasteful number, since it uses less digits than its factorization.

206397716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20903 (or 20901 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 206397716 is about 14366.5485068613. The cubic root of 206397716 is about 590.9738928366.

The spelling of 206397716 in words is "two hundred six million, three hundred ninety-seven thousand, seven hundred sixteen".