8609972807 has 4 divisors (see below), whose sum is σ = 8693564880. Its totient is φ = 8526380736.

The previous prime is 8609972803. The next prime is 8609972831. The reversal of 8609972807 is 7082799068.

8609972807 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 8609972807 - 2² = 8609972803 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 (8609972803) 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, 41795882 + ... + 41796087.

It is an arithmetic number, because the mean of its divisors is an integer number (2173391220).

Almost surely, 2^8609972807 is an apocalyptic number.

8609972807 is a deficient number, since it is larger than the sum of its proper divisors (83592073).

8609972807 is a wasteful number, since it uses less digits than its factorization.

8609972807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83592072.

The product of its (nonzero) digits is 3048192, while the sum is 56.

The square root of 8609972807 is about 92789.9391475175. The cubic root of 8609972807 is about 2049.5912575519.

The spelling of 8609972807 in words is "eight billion, six hundred nine million, nine hundred seventy-two thousand, eight hundred seven".