206663941 has 8 divisors (see below), whose sum is σ = 228168864. Its totient is φ = 185611920.

The previous prime is 206663927. The next prime is 206663953. The reversal of 206663941 is 149366602.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 206663941 - 2⁷ = 206663813 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 206663941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206663911) by changing a digit.

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, 112266 + ... + 114091.

It is an arithmetic number, because the mean of its divisors is an integer number (28521108).

Almost surely, 2^206663941 is an apocalyptic number.

It is an amenable number.

206663941 is a deficient number, since it is larger than the sum of its proper divisors (21504923).

206663941 is a wasteful number, since it uses less digits than its factorization.

206663941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226451.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 206663941 is about 14375.8109684289. The cubic root of 206663941 is about 591.2278756656.

The spelling of 206663941 in words is "two hundred six million, six hundred sixty-three thousand, nine hundred forty-one".