8728704679 has 4 divisors (see below), whose sum is σ = 8755075720. Its totient is φ = 8702333640.

The previous prime is 8728704667. The next prime is 8728704697. The reversal of 8728704679 is 9764078278.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9764078278 = 2 ⋅4882039139.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8728704679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8728704619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13185024 + ... + 13185685.

It is an arithmetic number, because the mean of its divisors is an integer number (2188768930).

Almost surely, 2^8728704679 is an apocalyptic number.

8728704679 is a deficient number, since it is larger than the sum of its proper divisors (26371041).

8728704679 is a wasteful number, since it uses less digits than its factorization.

8728704679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26371040.

The product of its (nonzero) digits is 9483264, while the sum is 58.

The square root of 8728704679 is about 93427.5370487738. The cubic root of 8728704679 is about 2058.9695948859.

The spelling of 8728704679 in words is "eight billion, seven hundred twenty-eight million, seven hundred four thousand, six hundred seventy-nine".