687226 has 16 divisors (see below), whose sum is σ = 1080288. Its totient is φ = 327600.

The previous prime is 687223. The next prime is 687233. The reversal of 687226 is 622786.

It is a happy number.

687226 is nontrivially palindromic in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (687223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5181 + ... + 5311.

It is an arithmetic number, because the mean of its divisors is an integer number (67518).

2⁶⁸⁷²²⁶ is an apocalyptic number.

687226 is a deficient number, since it is larger than the sum of its proper divisors (393062).

687226 is a wasteful number, since it uses less digits than its factorization.

687226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237.

The product of its digits is 8064, while the sum is 31.

The square root of 687226 is about 828.9909529060. The cubic root of 687226 is about 88.2469817895.

The spelling of 687226 in words is "six hundred eighty-seven thousand, two hundred twenty-six".