680892 has 24 divisors (see below), whose sum is σ = 1658496. Its totient is φ = 217008.

The previous prime is 680881. The next prime is 680917. The reversal of 680892 is 298086.

It is a super-2 number, since 2×680892² = 927227831328, which contains 22 as substring.

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 680892.

It is an unprimeable number.

680892 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 958 + ... + 1509.

It is an arithmetic number, because the mean of its divisors is an integer number (69104).

2⁶⁸⁰⁸⁹² is an apocalyptic number.

It is an amenable number.

680892 is an abundant number, since it is smaller than the sum of its proper divisors (977604).

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

680892 is a wasteful number, since it uses less digits than its factorization.

680892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2497 (or 2495 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 680892 is about 825.1618023152. The cubic root of 680892 is about 87.9750273492.

The spelling of 680892 in words is "six hundred eighty thousand, eight hundred ninety-two".