683355887 has 2 divisors, whose sum is σ = 683355888. Its totient is φ = 683355886.

The previous prime is 683355857. The next prime is 683355941. The reversal of 683355887 is 788553386.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 683355887 - 2⁶ = 683355823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (683355857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341677943 + 341677944.

It is an arithmetic number, because the mean of its divisors is an integer number (341677944).

Almost surely, 2^683355887 is an apocalyptic number.

683355887 is a deficient number, since it is larger than the sum of its proper divisors (1).

683355887 is an equidigital number, since it uses as much as digits as its factorization.

683355887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4838400, while the sum is 53.

The square root of 683355887 is about 26141.0766228172. The cubic root of 683355887 is about 880.8101556897.

The spelling of 683355887 in words is "six hundred eighty-three million, three hundred fifty-five thousand, eight hundred eighty-seven".