687883 has 4 divisors (see below), whose sum is σ = 786160. Its totient is φ = 589608.

The previous prime is 687847. The next prime is 687893. The reversal of 687883 is 388786.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 687883 - 2¹³ = 679691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (687823) 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, 49128 + ... + 49141.

It is an arithmetic number, because the mean of its divisors is an integer number (196540).

2⁶⁸⁷⁸⁸³ is an apocalyptic number.

687883 is a deficient number, since it is larger than the sum of its proper divisors (98277).

687883 is an equidigital number, since it uses as much as digits as its factorization.

687883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98276.

The product of its digits is 64512, while the sum is 40.

The square root of 687883 is about 829.3871231216. The cubic root of 687883 is about 88.2750947153.

The spelling of 687883 in words is "six hundred eighty-seven thousand, eight hundred eighty-three".