680026 has 8 divisors (see below), whose sum is σ = 1045044. Its totient is φ = 331680.

The previous prime is 680003. The next prime is 680027. The reversal of 680026 is 620086.

It can be written as a sum of positive squares in 2 ways, for example, as 561001 + 119025 = 749^2 + 345^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 679979 and 680006.

It is not an unprimeable number, because it can be changed into a prime (680027) 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, 4065 + ... + 4228.

2⁶⁸⁰⁰²⁶ is an apocalyptic number.

680026 is a deficient number, since it is larger than the sum of its proper divisors (365018).

680026 is a wasteful number, since it uses less digits than its factorization.

680026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8336.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 680026 is about 824.6368897885. The cubic root of 680026 is about 87.9377141894.

The spelling of 680026 in words is "six hundred eighty thousand, twenty-six".