683719938 has 36 divisors (see below), whose sum is σ = 1628313414. Its totient is φ = 207187200.

The previous prime is 683719901. The next prime is 683719943. The reversal of 683719938 is 839917386.

It can be written as a sum of positive squares in only one way, i.e., 643992129 + 39727809 = 25377^2 + 6303^2 .

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 154783 + ... + 159138.

Almost surely, 2^683719938 is an apocalyptic number.

683719938 is an abundant number, since it is smaller than the sum of its proper divisors (944593476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

683719938 is a wasteful number, since it uses less digits than its factorization.

683719938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313951 (or 313937 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The square root of 683719938 is about 26148.0388939591. The cubic root of 683719938 is about 880.9665421828.

The spelling of 683719938 in words is "six hundred eighty-three million, seven hundred nineteen thousand, nine hundred thirty-eight".