206689622 has 8 divisors (see below), whose sum is σ = 318413856. Its totient is φ = 100551672.

The previous prime is 206689601. The next prime is 206689631. The reversal of 206689622 is 226986602.

206689622 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 206689622.

It is a congruent number.

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, 1396478 + ... + 1396625.

It is an arithmetic number, because the mean of its divisors is an integer number (39801732).

Almost surely, 2^206689622 is an apocalyptic number.

206689622 is a deficient number, since it is larger than the sum of its proper divisors (111724234).

206689622 is a wasteful number, since it uses less digits than its factorization.

206689622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2793142.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 206689622 is about 14376.7041424660. The cubic root of 206689622 is about 591.2523642050.

The spelling of 206689622 in words is "two hundred six million, six hundred eighty-nine thousand, six hundred twenty-two".