680356 has 12 divisors (see below), whose sum is σ = 1223068. Its totient is φ = 330912.

The previous prime is 680353. The next prime is 680377. The reversal of 680356 is 653086.

680356 is nontrivially palindromic in base 7.

It can be written as a sum of positive squares in 2 ways, for example, as 320356 + 360000 = 566^2 + 600^2 .

It is not an unprimeable number, because it can be changed into a prime (680353) 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, 2151 + ... + 2446.

2⁶⁸⁰³⁵⁶ is an apocalyptic number.

It is an amenable number.

680356 is a deficient number, since it is larger than the sum of its proper divisors (542712).

680356 is a wasteful number, since it uses less digits than its factorization.

680356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4638 (or 4636 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 680356 is about 824.8369535854. The cubic root of 680356 is about 87.9519365636.

It can be divided in two parts, 6803 and 56, that added together give a cube (6859 = 19³).

The spelling of 680356 in words is "six hundred eighty thousand, three hundred fifty-six".