206448863 has 8 divisors (see below), whose sum is σ = 216541632. Its totient is φ = 196593696.

The previous prime is 206448859. The next prime is 206448881. The reversal of 206448863 is 368844602.

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 206448863 - 2² = 206448859 is a prime.

It is a super-2 number, since 2×206448863² = 85242266067985538, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 206448863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206448163) 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, 57620 + ... + 61097.

It is an arithmetic number, because the mean of its divisors is an integer number (27067704).

Almost surely, 2^206448863 is an apocalyptic number.

206448863 is a deficient number, since it is larger than the sum of its proper divisors (10092769).

206448863 is a wasteful number, since it uses less digits than its factorization.

206448863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118801.

The product of its (nonzero) digits is 221184, while the sum is 41.

The square root of 206448863 is about 14368.3284692410. The cubic root of 206448863 is about 591.0227048193.

The spelling of 206448863 in words is "two hundred six million, four hundred forty-eight thousand, eight hundred sixty-three".