82768847 has 4 divisors (see below), whose sum is σ = 94592976. Its totient is φ = 70944720.

The previous prime is 82768811. The next prime is 82768859. The reversal of 82768847 is 74886728.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 82768847 - 2⁶ = 82768783 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82768795 and 82768804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82768877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5912054 + ... + 5912067.

It is an arithmetic number, because the mean of its divisors is an integer number (23648244).

Almost surely, 2^82768847 is an apocalyptic number.

82768847 is a deficient number, since it is larger than the sum of its proper divisors (11824129).

82768847 is a wasteful number, since it uses less digits than its factorization.

82768847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11824128.

The product of its digits is 1204224, while the sum is 50.

The square root of 82768847 is about 9097.7385651600. The cubic root of 82768847 is about 435.8017485878.

The spelling of 82768847 in words is "eighty-two million, seven hundred sixty-eight thousand, eight hundred forty-seven".