687275855 has 16 divisors (see below), whose sum is σ = 942995520. Its totient is φ = 471052032.

The previous prime is 687275839. The next prime is 687275861. The reversal of 687275855 is 558572786.

It is a cyclic number.

It is not a de Polignac number, because 687275855 - 2⁴ = 687275839 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 687275797 and 687275806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110981 + ... + 117009.

It is an arithmetic number, because the mean of its divisors is an integer number (58937220).

Almost surely, 2^687275855 is an apocalyptic number.

687275855 is a deficient number, since it is larger than the sum of its proper divisors (255719665).

687275855 is a wasteful number, since it uses less digits than its factorization.

687275855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9298.

The product of its digits is 4704000, while the sum is 53.

The square root of 687275855 is about 26215.9465783710. The cubic root of 687275855 is about 882.4911570509.

The spelling of 687275855 in words is "six hundred eighty-seven million, two hundred seventy-five thousand, eight hundred fifty-five".