680265 has 16 divisors (see below), whose sum is σ = 1209600. Its totient is φ = 362736.

The previous prime is 680263. The next prime is 680291. The reversal of 680265 is 562086.

It is not a de Polignac number, because 680265 - 2¹ = 680263 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (680263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2385 + ... + 2654.

It is an arithmetic number, because the mean of its divisors is an integer number (75600).

2⁶⁸⁰²⁶⁵ is an apocalyptic number.

It is an amenable number.

680265 is a deficient number, since it is larger than the sum of its proper divisors (529335).

680265 is a wasteful number, since it uses less digits than its factorization.

680265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5053 (or 5047 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 680265 is about 824.7817893237. The cubic root of 680265 is about 87.9480150955.

The spelling of 680265 in words is "six hundred eighty thousand, two hundred sixty-five".