82109206 has 16 divisors (see below), whose sum is σ = 124407360. Its totient is φ = 40642560.

The previous prime is 82109189. The next prime is 82109219. The reversal of 82109206 is 60290128.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106390 + ... + 107158.

It is an arithmetic number, because the mean of its divisors is an integer number (7775460).

Almost surely, 2^82109206 is an apocalyptic number.

82109206 is a deficient number, since it is larger than the sum of its proper divisors (42298154).

82109206 is a wasteful number, since it uses less digits than its factorization.

82109206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 82109206 is about 9061.4130244681. The cubic root of 82109206 is about 434.6409262121.

The spelling of 82109206 in words is "eighty-two million, one hundred nine thousand, two hundred six".