8721006679 has 8 divisors (see below), whose sum is σ = 10872943488. Its totient is φ = 6795589560.

The previous prime is 8721006677. The next prime is 8721006713. The reversal of 8721006679 is 9766001278.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8721006679 - 2¹ = 8721006677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8721006673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56629837 + ... + 56629990.

It is an arithmetic number, because the mean of its divisors is an integer number (1359117936).

Almost surely, 2^8721006679 is an apocalyptic number.

8721006679 is a deficient number, since it is larger than the sum of its proper divisors (2151936809).

8721006679 is a wasteful number, since it uses less digits than its factorization.

8721006679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113259845.

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 8721006679 is about 93386.3302576989. The cubic root of 8721006679 is about 2058.3641362198.

The spelling of 8721006679 in words is "eight billion, seven hundred twenty-one million, six thousand, six hundred seventy-nine".