680266 has 8 divisors (see below), whose sum is σ = 1028160. Its totient is φ = 337548.

The previous prime is 680263. The next prime is 680291. The reversal of 680266 is 662086.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680263) 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, 946 + ... + 1501.

It is an arithmetic number, because the mean of its divisors is an integer number (128520).

2⁶⁸⁰²⁶⁶ is an apocalyptic number.

680266 is a deficient number, since it is larger than the sum of its proper divisors (347894).

680266 is a wasteful number, since it uses less digits than its factorization.

680266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2588.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 680266 is about 824.7823955444. The cubic root of 680266 is about 87.9480581905.

It can be divided in two parts, 68026 and 6, that multiplied together give a triangular number (408156 = T₉₀₃).

The spelling of 680266 in words is "six hundred eighty thousand, two hundred sixty-six".