82266786 has 48 divisors (see below), whose sum is σ = 212669280. Its totient is φ = 23504040.

The previous prime is 82266773. The next prime is 82266803. The reversal of 82266786 is 68766228.

It is a happy number.

It is a Curzon 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 23 ways as a sum of consecutive naturals, for example, 12900 + ... + 18191.

It is an arithmetic number, because the mean of its divisors is an integer number (4430610).

Almost surely, 2^82266786 is an apocalyptic number.

82266786 is an abundant number, since it is smaller than the sum of its proper divisors (130402494).

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

82266786 is a wasteful number, since it uses less digits than its factorization.

82266786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31116 (or 31103 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 82266786 is about 9070.1039685331. The cubic root of 82266786 is about 434.9187957814.

The spelling of 82266786 in words is "eighty-two million, two hundred sixty-six thousand, seven hundred eighty-six".