206985084 has 48 divisors (see below), whose sum is σ = 488910240. Its totient is φ = 68152320.

The previous prime is 206985029. The next prime is 206985089. The reversal of 206985084 is 480589602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206985089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 505872 + ... + 506280.

It is an arithmetic number, because the mean of its divisors is an integer number (10185630).

Almost surely, 2^206985084 is an apocalyptic number.

It is an amenable number.

206985084 is an abundant number, since it is smaller than the sum of its proper divisors (281925156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206985084 is a wasteful number, since it uses less digits than its factorization.

206985084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830 (or 828 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 206985084 is about 14386.9761937664. The cubic root of 206985084 is about 591.5339610418.

It can be divided in two parts, 2069 and 85084, that added together give a triangular number (87153 = T₄₁₇).

The spelling of 206985084 in words is "two hundred six million, nine hundred eighty-five thousand, eighty-four".