206238847 has 8 divisors (see below), whose sum is σ = 211428144. Its totient is φ = 201097728.

The previous prime is 206238839. The next prime is 206238881. The reversal of 206238847 is 748832602.

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 206238847 - 2³ = 206238839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206238817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3298 + ... + 20575.

It is an arithmetic number, because the mean of its divisors is an integer number (26428518).

Almost surely, 2^206238847 is an apocalyptic number.

206238847 is a deficient number, since it is larger than the sum of its proper divisors (5189297).

206238847 is a wasteful number, since it uses less digits than its factorization.

206238847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24089.

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 206238847 is about 14361.0183134762. The cubic root of 206238847 is about 590.8222252494.

The spelling of 206238847 in words is "two hundred six million, two hundred thirty-eight thousand, eight hundred forty-seven".