205670984 has 16 divisors (see below), whose sum is σ = 387463920. Its totient is φ = 102347280.

The previous prime is 205670977. The next prime is 205670999. The reversal of 205670984 is 489076502.

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, 59234 + ... + 62609.

It is an arithmetic number, because the mean of its divisors is an integer number (24216495).

Almost surely, 2^205670984 is an apocalyptic number.

It is an amenable number.

205670984 is a deficient number, since it is larger than the sum of its proper divisors (181792936).

205670984 is a wasteful number, since it uses less digits than its factorization.

205670984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122060 (or 122056 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 205670984 is about 14341.2336986746. The cubic root of 205670984 is about 590.2794654214.

The spelling of 205670984 in words is "two hundred five million, six hundred seventy thousand, nine hundred eighty-four".