681887575 has 12 divisors (see below), whose sum is σ = 849240040. Its totient is φ = 543123360.

The previous prime is 681887537. The next prime is 681887617. The reversal of 681887575 is 575788186.

681887575 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 681887575 - 2²³ = 673498967 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53829 + ... + 65278.

Almost surely, 2^681887575 is an apocalyptic number.

681887575 is a deficient number, since it is larger than the sum of its proper divisors (167352465).

681887575 is a wasteful number, since it uses less digits than its factorization.

681887575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119346 (or 119341 counting only the distinct ones).

The product of its digits is 3763200, while the sum is 55.

The square root of 681887575 is about 26112.9771378141. The cubic root of 681887575 is about 880.1788440743.

The spelling of 681887575 in words is "six hundred eighty-one million, eight hundred eighty-seven thousand, five hundred seventy-five".