687255 has 8 divisors (see below), whose sum is σ = 1099632. Its totient is φ = 366528.

The previous prime is 687233. The next prime is 687277. The reversal of 687255 is 552786.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (687233) and next prime (687277).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 687255 - 2⁵ = 687223 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 6 + 8⁶ + 2¹¹ + 7⁵ + 5⁶ + 5⁸ .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 687255.

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, 22894 + ... + 22923.

It is an arithmetic number, because the mean of its divisors is an integer number (137454).

2⁶⁸⁷²⁵⁵ is an apocalyptic number.

687255 is a deficient number, since it is larger than the sum of its proper divisors (412377).

687255 is a wasteful number, since it uses less digits than its factorization.

687255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45825.

The product of its digits is 16800, while the sum is 33.

The square root of 687255 is about 829.0084438653. The cubic root of 687255 is about 88.2482230728.

The spelling of 687255 in words is "six hundred eighty-seven thousand, two hundred fifty-five".