206889028 has 12 divisors (see below), whose sum is σ = 362435472. Its totient is φ = 103336040.

The previous prime is 206889019. The next prime is 206889047. The reversal of 206889028 is 820988602.

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, 22750 + ... + 30517.

It is an arithmetic number, because the mean of its divisors is an integer number (30202956).

Almost surely, 2^206889028 is an apocalyptic number.

It is an amenable number.

206889028 is a deficient number, since it is larger than the sum of its proper divisors (155546444).

206889028 is a wasteful number, since it uses less digits than its factorization.

206889028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54242 (or 54240 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 206889028 is about 14383.6375093368. The cubic root of 206889028 is about 591.4424420832.

The spelling of 206889028 in words is "two hundred six million, eight hundred eighty-nine thousand, twenty-eight".