680019 has 8 divisors (see below), whose sum is σ = 917952. Its totient is φ = 447720.

The previous prime is 680003. The next prime is 680027. The reversal of 680019 is 910086.

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

It is not a de Polignac number, because 680019 - 2⁴ = 680003 is a prime.

It is a super-2 number, since 2×680019² = 924851680722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (680039) 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, 1117 + ... + 1614.

It is an arithmetic number, because the mean of its divisors is an integer number (114744).

2⁶⁸⁰⁰¹⁹ is an apocalyptic number.

680019 is a deficient number, since it is larger than the sum of its proper divisors (237933).

680019 is a wasteful number, since it uses less digits than its factorization.

680019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2817.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 680019 is about 824.6326454852. The cubic root of 680019 is about 87.9374124528.

The spelling of 680019 in words is "six hundred eighty thousand, nineteen".