8072782807 has 4 divisors (see below), whose sum is σ = 8074027296. Its totient is φ = 8071538320.

The previous prime is 8072782799. The next prime is 8072782831. The reversal of 8072782807 is 7082872708.

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

It is a cyclic number.

It is not a de Polignac number, because 8072782807 - 2³ = 8072782799 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8072782847) 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, 612463 + ... + 625504.

It is an arithmetic number, because the mean of its divisors is an integer number (2018506824).

Almost surely, 2^8072782807 is an apocalyptic number.

8072782807 is a deficient number, since it is larger than the sum of its proper divisors (1244489).

8072782807 is a wasteful number, since it uses less digits than its factorization.

8072782807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244488.

The product of its (nonzero) digits is 702464, while the sum is 49.

The square root of 8072782807 is about 89848.6661392366. Note that the first 3 decimals coincide. The cubic root of 8072782807 is about 2006.0469327929.

The spelling of 8072782807 in words is "eight billion, seventy-two million, seven hundred eighty-two thousand, eight hundred seven".