82651766 has 12 divisors (see below), whose sum is σ = 128108916. Its totient is φ = 39991860.

The previous prime is 82651741. The next prime is 82651771. The reversal of 82651766 is 66715628.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19580 + ... + 23423.

It is an arithmetic number, because the mean of its divisors is an integer number (10675743).

Almost surely, 2^82651766 is an apocalyptic number.

82651766 is a deficient number, since it is larger than the sum of its proper divisors (45457150).

82651766 is a wasteful number, since it uses less digits than its factorization.

82651766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43067 (or 43036 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 82651766 is about 9091.3016669782. The cubic root of 82651766 is about 435.5961632576.

The spelling of 82651766 in words is "eighty-two million, six hundred fifty-one thousand, seven hundred sixty-six".