680662 has 8 divisors (see below), whose sum is σ = 1065456. Its totient is φ = 325512.

The previous prime is 680657. The next prime is 680681. The reversal of 680662 is 266086.

It is a happy number.

680662 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 self number, because there is not a number n which added to its sum of digits gives 680662.

It is a congruent number.

It is an unprimeable number.

680662 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7353 + ... + 7444.

It is an arithmetic number, because the mean of its divisors is an integer number (133182).

2⁶⁸⁰⁶⁶² is an apocalyptic number.

680662 is a deficient number, since it is larger than the sum of its proper divisors (384794).

680662 is a wasteful number, since it uses less digits than its factorization.

680662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14822.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 680662 is about 825.0224239377. The cubic root of 680662 is about 87.9651204746.

The spelling of 680662 in words is "six hundred eighty thousand, six hundred sixty-two".