683956593 has 6 divisors (see below), whose sum is σ = 987937314. Its totient is φ = 455971056.

The previous prime is 683956571. The next prime is 683956601. The reversal of 683956593 is 395659386.

It can be written as a sum of positive squares in only one way, i.e., 404130609 + 279825984 = 20103^2 + 16728^2 .

It is not a de Polignac number, because 683956593 - 2⁸ = 683956337 is a prime.

It is a super-2 number, since 2×683956593² = 935593242216335298, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (683956513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37997580 + ... + 37997597.

It is an arithmetic number, because the mean of its divisors is an integer number (164656219).

Almost surely, 2^683956593 is an apocalyptic number.

It is an amenable number.

683956593 is a deficient number, since it is larger than the sum of its proper divisors (303980721).

683956593 is a wasteful number, since it uses less digits than its factorization.

683956593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75995183 (or 75995180 counting only the distinct ones).

The product of its digits is 5248800, while the sum is 54.

The square root of 683956593 is about 26152.5637940145. The cubic root of 683956593 is about 881.0681730192.

The spelling of 683956593 in words is "six hundred eighty-three million, nine hundred fifty-six thousand, five hundred ninety-three".