680536 has 16 divisors (see below), whose sum is σ = 1284840. Its totient is φ = 337920.

The previous prime is 680531. The next prime is 680539. The reversal of 680536 is 635086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1891 + ... + 2221.

2⁶⁸⁰⁵³⁶ is an apocalyptic number.

It is an amenable number.

680536 is a deficient number, since it is larger than the sum of its proper divisors (604304).

680536 is a wasteful number, since it uses less digits than its factorization.

680536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594 (or 590 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 680536 is about 824.9460588426. The cubic root of 680536 is about 87.9596922840.

The spelling of 680536 in words is "six hundred eighty thousand, five hundred thirty-six".