680488 has 8 divisors (see below), whose sum is σ = 1275930. Its totient is φ = 340240.

The previous prime is 680453. The next prime is 680489. The reversal of 680488 is 884086.

It can be written as a sum of positive squares in only one way, i.e., 412164 + 268324 = 642^2 + 518^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (680489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42523 + ... + 42538.

2⁶⁸⁰⁴⁸⁸ is an apocalyptic number.

It is an amenable number.

680488 is a deficient number, since it is larger than the sum of its proper divisors (595442).

680488 is a wasteful number, since it uses less digits than its factorization.

680488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85067 (or 85063 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 680488 is about 824.9169655183. The cubic root of 680488 is about 87.9576242256.

The spelling of 680488 in words is "six hundred eighty thousand, four hundred eighty-eight".