8697663693 has 24 divisors (see below), whose sum is σ = 13127212800. Its totient is φ = 5538852000.

The previous prime is 8697663691. The next prime is 8697663697. The reversal of 8697663693 is 3963667968.

It is not a de Polignac number, because 8697663693 - 2¹ = 8697663691 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8697663693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8697663691) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127483 + ... + 183431.

It is an arithmetic number, because the mean of its divisors is an integer number (546967200).

Almost surely, 2^8697663693 is an apocalyptic number.

It is an amenable number.

8697663693 is a deficient number, since it is larger than the sum of its proper divisors (4429549107).

8697663693 is a wasteful number, since it uses less digits than its factorization.

8697663693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56729 (or 56726 counting only the distinct ones).

The product of its digits is 52907904, while the sum is 63.

The square root of 8697663693 is about 93261.2657698790. The cubic root of 8697663693 is about 2056.5259960363.

The spelling of 8697663693 in words is "eight billion, six hundred ninety-seven million, six hundred sixty-three thousand, six hundred ninety-three".