680478 has 16 divisors (see below), whose sum is σ = 1420416. Its totient is φ = 216920.

The previous prime is 680453. The next prime is 680489. The reversal of 680478 is 874086.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2328 + ... + 2603.

It is an arithmetic number, because the mean of its divisors is an integer number (88776).

2⁶⁸⁰⁴⁷⁸ is an apocalyptic number.

680478 is an abundant number, since it is smaller than the sum of its proper divisors (739938).

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

680478 is a wasteful number, since it uses less digits than its factorization.

680478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4959.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 680478 is about 824.9109042800. The cubic root of 680478 is about 87.9571933679.

The spelling of 680478 in words is "six hundred eighty thousand, four hundred seventy-eight".