680257293 has 16 divisors (see below), whose sum is σ = 923837376. Its totient is φ = 445161600.

The previous prime is 680257241. The next prime is 680257301. The reversal of 680257293 is 392752086.

680257293 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 680257293 - 2¹⁴ = 680240909 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680257093) 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, 30393 + ... + 47793.

It is an arithmetic number, because the mean of its divisors is an integer number (57739836).

Almost surely, 2^680257293 is an apocalyptic number.

It is an amenable number.

680257293 is a deficient number, since it is larger than the sum of its proper divisors (243580083).

680257293 is a wasteful number, since it uses less digits than its factorization.

680257293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17644.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 680257293 is about 26081.7425223086. The cubic root of 680257293 is about 879.4768296126.

The spelling of 680257293 in words is "six hundred eighty million, two hundred fifty-seven thousand, two hundred ninety-three".