683633 has 4 divisors (see below), whose sum is σ = 695280. Its totient is φ = 671988.

The previous prime is 683603. The next prime is 683651. The reversal of 683633 is 336386.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 336386 = 2 ⋅168193.

It is a cyclic number.

It is not a de Polignac number, because 683633 - 2⁸ = 683377 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 683596 and 683605.

It is not an unprimeable number, because it can be changed into a prime (683603) 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 3 ways as a sum of consecutive naturals, for example, 5735 + ... + 5852.

It is an arithmetic number, because the mean of its divisors is an integer number (173820).

2⁶⁸³⁶³³ is an apocalyptic number.

It is an amenable number.

683633 is a deficient number, since it is larger than the sum of its proper divisors (11647).

683633 is a wasteful number, since it uses less digits than its factorization.

683633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11646.

The product of its digits is 7776, while the sum is 29.

The square root of 683633 is about 826.8210205359. The cubic root of 683633 is about 88.0929201009.

The spelling of 683633 in words is "six hundred eighty-three thousand, six hundred thirty-three".