687230 has 16 divisors (see below), whose sum is σ = 1302480. Its totient is φ = 260352.

The previous prime is 687223. The next prime is 687233. The reversal of 687230 is 32786.

It is a self number, because there is not a number n which added to its sum of digits gives 687230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (687233) by changing a digit.

687230 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1619 + ... + 1998.

It is an arithmetic number, because the mean of its divisors is an integer number (81405).

2⁶⁸⁷²³⁰ is an apocalyptic number.

687230 is a deficient number, since it is larger than the sum of its proper divisors (615250).

687230 is a wasteful number, since it uses less digits than its factorization.

687230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3643.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 687230 is about 828.9933654741. The cubic root of 687230 is about 88.2471530030.

The spelling of 687230 in words is "six hundred eighty-seven thousand, two hundred thirty".