8720710007 has 4 divisors (see below), whose sum is σ = 8722380456. Its totient is φ = 8719039560.

The previous prime is 8720710001. The next prime is 8720710027. The reversal of 8720710007 is 7000170278.

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 8720710007 - 2¹⁴ = 8720693623 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 (8720710001) 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, 827369 + ... + 837842.

It is an arithmetic number, because the mean of its divisors is an integer number (2180595114).

Almost surely, 2^8720710007 is an apocalyptic number.

8720710007 is a deficient number, since it is larger than the sum of its proper divisors (1670449).

8720710007 is a wasteful number, since it uses less digits than its factorization.

8720710007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670448.

The product of its (nonzero) digits is 5488, while the sum is 32.

The square root of 8720710007 is about 93384.7418318432. The cubic root of 8720710007 is about 2058.3407954155.

The spelling of 8720710007 in words is "eight billion, seven hundred twenty million, seven hundred ten thousand, seven".