680698 has 8 divisors (see below), whose sum is σ = 1054080. Its totient is φ = 329340.

The previous prime is 680681. The next prime is 680707. The reversal of 680698 is 896086.

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

It is an unprimeable 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 3 ways as a sum of consecutive naturals, for example, 5428 + ... + 5551.

It is an arithmetic number, because the mean of its divisors is an integer number (131760).

2⁶⁸⁰⁶⁹⁸ is an apocalyptic number.

680698 is a deficient number, since it is larger than the sum of its proper divisors (373382).

680698 is a wasteful number, since it uses less digits than its factorization.

680698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11012.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 680698 is about 825.0442412380. The cubic root of 680698 is about 87.9666712631.

It can be divided in two parts, 680 and 698, that added together give a triangular number (1378 = T₅₂).

The spelling of 680698 in words is "six hundred eighty thousand, six hundred ninety-eight".