82281766 has 8 divisors (see below), whose sum is σ = 141054480. Its totient is φ = 35263608.

The previous prime is 82281757. The next prime is 82281809. The reversal of 82281766 is 66718228.

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

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 3 ways as a sum of consecutive naturals, for example, 2938621 + ... + 2938648.

It is an arithmetic number, because the mean of its divisors is an integer number (17631810).

Almost surely, 2^82281766 is an apocalyptic number.

82281766 is a deficient number, since it is larger than the sum of its proper divisors (58772714).

82281766 is a wasteful number, since it uses less digits than its factorization.

82281766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5877278.

The product of its digits is 64512, while the sum is 40.

The square root of 82281766 is about 9070.9297208169. The cubic root of 82281766 is about 434.9451923726.

The spelling of 82281766 in words is "eighty-two million, two hundred eighty-one thousand, seven hundred sixty-six".