8607795721 has 16 divisors (see below), whose sum is σ = 9989093376. Its totient is φ = 7264507536.

The previous prime is 8607795673. The next prime is 8607795767. The reversal of 8607795721 is 1275977068.

It is a cyclic number.

It is not a de Polignac number, because 8607795721 - 2¹⁹ = 8607271433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8607795821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1595190 + ... + 1600576.

It is an arithmetic number, because the mean of its divisors is an integer number (624318336).

Almost surely, 2^8607795721 is an apocalyptic number.

It is an amenable number.

8607795721 is a deficient number, since it is larger than the sum of its proper divisors (1381297655).

8607795721 is a wasteful number, since it uses less digits than its factorization.

8607795721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8868.

The product of its (nonzero) digits is 1481760, while the sum is 52.

The square root of 8607795721 is about 92778.2071447816. The cubic root of 8607795721 is about 2049.4184922916.

The spelling of 8607795721 in words is "eight billion, six hundred seven million, seven hundred ninety-five thousand, seven hundred twenty-one".