206285387 has 8 divisors (see below), whose sum is σ = 257187072. Its totient is φ = 160741800.

The previous prime is 206285383. The next prime is 206285399. The reversal of 206285387 is 783582602.

206285387 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 cyclic number.

It is not a de Polignac number, because 206285387 - 2² = 206285383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206285383) 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, 1339439 + ... + 1339592.

It is an arithmetic number, because the mean of its divisors is an integer number (32148384).

Almost surely, 2^206285387 is an apocalyptic number.

206285387 is a deficient number, since it is larger than the sum of its proper divisors (50901685).

206285387 is a wasteful number, since it uses less digits than its factorization.

206285387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2679049.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 206285387 is about 14362.6385807065. The cubic root of 206285387 is about 590.8666636900.

The spelling of 206285387 in words is "two hundred six million, two hundred eighty-five thousand, three hundred eighty-seven".