680673426 has 8 divisors (see below), whose sum is σ = 1361346864. Its totient is φ = 226891140.

The previous prime is 680673419. The next prime is 680673437. The reversal of 680673426 is 624376086.

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

680673426 is an admirable number.

It is a super-3 number, since 3×680673426³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56722780 + ... + 56722791.

It is an arithmetic number, because the mean of its divisors is an integer number (170168358).

Almost surely, 2^680673426 is an apocalyptic number.

680673426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

680673426 is a wasteful number, since it uses less digits than its factorization.

680673426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113445576.

The product of its (nonzero) digits is 290304, while the sum is 42.

The square root of 680673426 is about 26089.7187796266. The cubic root of 680673426 is about 879.6561268354.

The spelling of 680673426 in words is "six hundred eighty million, six hundred seventy-three thousand, four hundred twenty-six".