8693973641 has 4 divisors (see below), whose sum is σ = 8760339984. Its totient is φ = 8627607300.

The previous prime is 8693973637. The next prime is 8693973677. The reversal of 8693973641 is 1463793968.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8693973641 - 2² = 8693973637 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8693973611) 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, 33182975 + ... + 33183236.

It is an arithmetic number, because the mean of its divisors is an integer number (2190084996).

Almost surely, 2^8693973641 is an apocalyptic number.

It is an amenable number.

8693973641 is a deficient number, since it is larger than the sum of its proper divisors (66366343).

8693973641 is a wasteful number, since it uses less digits than its factorization.

8693973641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66366342.

The product of its digits is 5878656, while the sum is 56.

The square root of 8693973641 is about 93241.4802595926. The cubic root of 8693973641 is about 2056.2351224725.

The spelling of 8693973641 in words is "eight billion, six hundred ninety-three million, nine hundred seventy-three thousand, six hundred forty-one".