680393 has 12 divisors (see below), whose sum is σ = 810432. Its totient is φ = 559440.

The previous prime is 680387. The next prime is 680399. The reversal of 680393 is 393086.

It is an interprime number because it is at equal distance from previous prime (680387) and next prime (680399).

It is not a de Polignac number, because 680393 - 2⁴ = 680377 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (680399) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9548 + ... + 9618.

It is an arithmetic number, because the mean of its divisors is an integer number (67536).

2⁶⁸⁰³⁹³ is an apocalyptic number.

It is an amenable number.

680393 is a deficient number, since it is larger than the sum of its proper divisors (130039).

680393 is an equidigital number, since it uses as much as digits as its factorization.

680393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 680393 is about 824.8593819555. The cubic root of 680393 is about 87.9535309067.

The spelling of 680393 in words is "six hundred eighty thousand, three hundred ninety-three".