683939893 has 24 divisors (see below), whose sum is σ = 867713280. Its totient is φ = 534250080.

The previous prime is 683939881. The next prime is 683939917. The reversal of 683939893 is 398939386.

It is not a de Polignac number, because 683939893 - 2²¹ = 681842741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (683939843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43528 + ... + 57118.

It is an arithmetic number, because the mean of its divisors is an integer number (36154720).

Almost surely, 2^683939893 is an apocalyptic number.

It is an amenable number.

683939893 is a deficient number, since it is larger than the sum of its proper divisors (183773387).

683939893 is a wasteful number, since it uses less digits than its factorization.

683939893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13697 (or 13690 counting only the distinct ones).

The product of its digits is 7558272, while the sum is 58.

The square root of 683939893 is about 26152.2445117049. The cubic root of 683939893 is about 881.0610020191.

The spelling of 683939893 in words is "six hundred eighty-three million, nine hundred thirty-nine thousand, eight hundred ninety-three".