680344 has 16 divisors (see below), whose sum is σ = 1458000. Its totient is φ = 291552.

The previous prime is 680341. The next prime is 680347. The reversal of 680344 is 443086.

It is an interprime number because it is at equal distance from previous prime (680341) and next prime (680347).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680341) 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, 6019 + ... + 6130.

It is an arithmetic number, because the mean of its divisors is an integer number (91125).

2⁶⁸⁰³⁴⁴ is an apocalyptic number.

It is an amenable number.

680344 is an abundant number, since it is smaller than the sum of its proper divisors (777656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

680344 is a wasteful number, since it uses less digits than its factorization.

680344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12162 (or 12158 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 680344 is about 824.8296793884. The cubic root of 680344 is about 87.9514194670.

It can be divided in two parts, 680 and 344, that added together give a 10-th power (1024 = 2¹⁰).

The spelling of 680344 in words is "six hundred eighty thousand, three hundred forty-four".