680051 has 8 divisors (see below), whose sum is σ = 728640. Its totient is φ = 632448.

The previous prime is 680039. The next prime is 680059. The reversal of 680051 is 150086.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-680051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (680059) 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, 1670 + ... + 2036.

It is an arithmetic number, because the mean of its divisors is an integer number (91080).

2⁶⁸⁰⁰⁵¹ is an apocalyptic number.

680051 is a deficient number, since it is larger than the sum of its proper divisors (48589).

680051 is a wasteful number, since it uses less digits than its factorization.

680051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 680051 is about 824.6520478359. The cubic root of 680051 is about 87.9387918030.

The spelling of 680051 in words is "six hundred eighty thousand, fifty-one".