680523 has 8 divisors (see below), whose sum is σ = 955200. Its totient is φ = 429768.

The previous prime is 680509. The next prime is 680531. The reversal of 680523 is 325086.

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

It is not a de Polignac number, because 680523 - 2⁴ = 680507 is a prime.

It is a super-2 number, since 2×680523² = 926223107058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 680493 and 680502.

It is not an unprimeable number, because it can be changed into a prime (680503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5913 + ... + 6026.

It is an arithmetic number, because the mean of its divisors is an integer number (119400).

2⁶⁸⁰⁵²³ is an apocalyptic number.

680523 is a deficient number, since it is larger than the sum of its proper divisors (274677).

680523 is a wasteful number, since it uses less digits than its factorization.

680523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11961.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 680523 is about 824.9381795020. The cubic root of 680523 is about 87.9591321944.

The spelling of 680523 in words is "six hundred eighty thousand, five hundred twenty-three".