209706082 has 8 divisors (see below), whose sum is σ = 316642752. Its totient is φ = 104158500.

The previous prime is 209706017. The next prime is 209706109. The reversal of 209706082 is 280607902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 346894 + ... + 347497.

It is an arithmetic number, because the mean of its divisors is an integer number (39580344).

Almost surely, 2^209706082 is an apocalyptic number.

209706082 is a deficient number, since it is larger than the sum of its proper divisors (106936670).

209706082 is a wasteful number, since it uses less digits than its factorization.

209706082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694544.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 209706082 is about 14481.2320608434. The cubic root of 209706082 is about 594.1147601433.

The spelling of 209706082 in words is "two hundred nine million, seven hundred six thousand, eighty-two".