82077766 has 8 divisors (see below), whose sum is σ = 126444240. Its totient is φ = 39929688.

The previous prime is 82077727. The next prime is 82077817. The reversal of 82077766 is 66777028.

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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 554506 + ... + 554653.

It is an arithmetic number, because the mean of its divisors is an integer number (15805530).

Almost surely, 2^82077766 is an apocalyptic number.

82077766 is a deficient number, since it is larger than the sum of its proper divisors (44366474).

82077766 is a wasteful number, since it uses less digits than its factorization.

82077766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109198.

The product of its (nonzero) digits is 197568, while the sum is 43.

The square root of 82077766 is about 9059.6780295991. The cubic root of 82077766 is about 434.5854437804.

The spelling of 82077766 in words is "eighty-two million, seventy-seven thousand, seven hundred sixty-six".