643595096 has 32 divisors (see below), whose sum is σ = 1215972000. Its totient is φ = 319347456.

The previous prime is 643595089. The next prime is 643595101. The reversal of 643595096 is 690595346.

It is a self number, because there is not a number n which added to its sum of digits gives 643595096.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 795140 + ... + 795948.

It is an arithmetic number, because the mean of its divisors is an integer number (37999125).

Almost surely, 2^643595096 is an apocalyptic number.

It is an amenable number.

643595096 is a deficient number, since it is larger than the sum of its proper divisors (572376904).

643595096 is a wasteful number, since it uses less digits than its factorization.

643595096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1451 (or 1447 counting only the distinct ones).

The product of its (nonzero) digits is 874800, while the sum is 47.

The square root of 643595096 is about 25369.1761001417. The cubic root of 643595096 is about 863.3844888849.

The spelling of 643595096 in words is "six hundred forty-three million, five hundred ninety-five thousand, ninety-six".