680942 has 8 divisors (see below), whose sum is σ = 1031832. Its totient is φ = 337000.

The previous prime is 680929. The next prime is 680959. The reversal of 680942 is 249086.

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

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 680942.

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, 1484 + ... + 1887.

It is an arithmetic number, because the mean of its divisors is an integer number (128979).

2⁶⁸⁰⁹⁴² is an apocalyptic number.

680942 is a deficient number, since it is larger than the sum of its proper divisors (350890).

680942 is a wasteful number, since it uses less digits than its factorization.

680942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3474.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 680942 is about 825.1920988473. The cubic root of 680942 is about 87.9771807224.

The spelling of 680942 in words is "six hundred eighty thousand, nine hundred forty-two".