680164 has 12 divisors (see below), whose sum is σ = 1203244. Its totient is φ = 336384.

The previous prime is 680161. The next prime is 680177. The reversal of 680164 is 461086.

It can be written as a sum of positive squares in 2 ways, for example, as 129600 + 550564 = 360^2 + 742^2 .

It is not an unprimeable number, because it can be changed into a prime (680161) 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, 489 + ... + 1264.

2⁶⁸⁰¹⁶⁴ is an apocalyptic number.

It is an amenable number.

680164 is a deficient number, since it is larger than the sum of its proper divisors (523080).

680164 is a wasteful number, since it uses less digits than its factorization.

680164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1854 (or 1852 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 680164 is about 824.7205587349. The cubic root of 680164 is about 87.9436622873.

The spelling of 680164 in words is "six hundred eighty thousand, one hundred sixty-four".