683121386 has 8 divisors (see below), whose sum is σ = 1033750404. Its totient is φ = 338537920.

The previous prime is 683121289. The next prime is 683121391.

683121386 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 672105625 + 11015761 = 25925^2 + 3319^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1511105 + ... + 1511556.

Almost surely, 2^683121386 is an apocalyptic number.

683121386 is a deficient number, since it is larger than the sum of its proper divisors (350629018).

683121386 is a wasteful number, since it uses less digits than its factorization.

683121386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3022776.

The product of its digits is 41472, while the sum is 38.

The square root of 683121386 is about 26136.5909406717. The cubic root of 683121386 is about 880.7093909699.

The spelling of 683121386 in words is "six hundred eighty-three million, one hundred twenty-one thousand, three hundred eighty-six".