680734 has 8 divisors (see below), whose sum is σ = 1030968. Its totient is φ = 337080.

The previous prime is 680707. The next prime is 680749. The reversal of 680734 is 437086.

680734 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1377 + ... + 1804.

It is an arithmetic number, because the mean of its divisors is an integer number (128871).

2⁶⁸⁰⁷³⁴ is an apocalyptic number.

680734 is a deficient number, since it is larger than the sum of its proper divisors (350234).

680734 is a wasteful number, since it uses less digits than its factorization.

680734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3290.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 680734 is about 825.0660579614. The cubic root of 680734 is about 87.9682219970.

The spelling of 680734 in words is "six hundred eighty thousand, seven hundred thirty-four".