680741 has 4 divisors (see below), whose sum is σ = 684684. Its totient is φ = 676800.

The previous prime is 680707. The next prime is 680749. The reversal of 680741 is 147086.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 112225 + 568516 = 335^2 + 754^2 .

It is a cyclic number.

It is not a de Polignac number, because 680741 - 2¹⁴ = 664357 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 680741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680749) 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, 1700 + ... + 2061.

It is an arithmetic number, because the mean of its divisors is an integer number (171171).

2⁶⁸⁰⁷⁴¹ is an apocalyptic number.

It is an amenable number.

680741 is a deficient number, since it is larger than the sum of its proper divisors (3943).

680741 is a wasteful number, since it uses less digits than its factorization.

680741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3942.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 680741 is about 825.0703000351. The cubic root of 680741 is about 87.9685235222.

The spelling of 680741 in words is "six hundred eighty thousand, seven hundred forty-one".