82009186 has 16 divisors (see below), whose sum is σ = 141128064. Its totient is φ = 35011584.

The previous prime is 82009181. The next prime is 82009201. The reversal of 82009186 is 68190028.

It is not an unprimeable number, because it can be changed into a prime (82009181) by changing a digit.

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, 7455 + ... + 14818.

It is an arithmetic number, because the mean of its divisors is an integer number (8820504).

Almost surely, 2^82009186 is an apocalyptic number.

82009186 is a deficient number, since it is larger than the sum of its proper divisors (59118878).

82009186 is a wasteful number, since it uses less digits than its factorization.

82009186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22545.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 82009186 is about 9055.8923359324. The cubic root of 82009186 is about 434.4643709008.

The spelling of 82009186 in words is "eighty-two million, nine thousand, one hundred eighty-six".