82757866 has 8 divisors (see below), whose sum is σ = 125297280. Its totient is φ = 40992108.

The previous prime is 82757849. The next prime is 82757867. The reversal of 82757866 is 66875728.

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

It is not an unprimeable number, because it can be changed into a prime (82757867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193146 + ... + 193573.

It is an arithmetic number, because the mean of its divisors is an integer number (15662160).

Almost surely, 2^82757866 is an apocalyptic number.

82757866 is a deficient number, since it is larger than the sum of its proper divisors (42539414).

82757866 is a wasteful number, since it uses less digits than its factorization.

82757866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386828.

The product of its digits is 1128960, while the sum is 49.

The square root of 82757866 is about 9097.1350435178. The cubic root of 82757866 is about 435.7824750293.

The spelling of 82757866 in words is "eighty-two million, seven hundred fifty-seven thousand, eight hundred sixty-six".