1683950563 has 24 divisors (see below), whose sum is σ = 1841894208. Its totient is φ = 1538269488.

The previous prime is 1683950551. The next prime is 1683950579. The reversal of 1683950563 is 3650593861.

It is not a de Polignac number, because 1683950563 - 2¹⁷ = 1683819491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1683950063) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1287756 + ... + 1289062.

It is an arithmetic number, because the mean of its divisors is an integer number (76745592).

Almost surely, 2^1683950563 is an apocalyptic number.

1683950563 is a deficient number, since it is larger than the sum of its proper divisors (157943645).

1683950563 is a wasteful number, since it uses less digits than its factorization.

1683950563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471 (or 1452 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 46.

The square root of 1683950563 is about 41035.9666999572. The cubic root of 1683950563 is about 1189.7154800805.

The spelling of 1683950563 in words is "one billion, six hundred eighty-three million, nine hundred fifty thousand, five hundred sixty-three".