683983871 has 4 divisors (see below), whose sum is σ = 688976592. Its totient is φ = 678991152.

The previous prime is 683983847. The next prime is 683983889. The reversal of 683983871 is 178389386.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 683983871 - 2¹⁰ = 683982847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (683983891) 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 3 ways as a sum of consecutive naturals, for example, 2496155 + ... + 2496428.

It is an arithmetic number, because the mean of its divisors is an integer number (172244148).

Almost surely, 2^683983871 is an apocalyptic number.

683983871 is a deficient number, since it is larger than the sum of its proper divisors (4992721).

683983871 is a wasteful number, since it uses less digits than its factorization.

683983871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4992720.

The product of its digits is 1741824, while the sum is 53.

The square root of 683983871 is about 26153.0853055619. The cubic root of 683983871 is about 881.0798859740.

The spelling of 683983871 in words is "six hundred eighty-three million, nine hundred eighty-three thousand, eight hundred seventy-one".