683630 has 16 divisors (see below), whose sum is σ = 1242000. Its totient is φ = 270912.

The previous prime is 683603. The next prime is 683651. The reversal of 683630 is 36386.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 683630.

It is a congruent number.

It is an unprimeable number.

683630 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1121 + ... + 1619.

It is an arithmetic number, because the mean of its divisors is an integer number (77625).

2⁶⁸³⁶³⁰ is an apocalyptic number.

683630 is a deficient number, since it is larger than the sum of its proper divisors (558370).

683630 is a wasteful number, since it uses less digits than its factorization.

683630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 683630 is about 826.8192063565. The cubic root of 683630 is about 88.0927912407.

The spelling of 683630 in words is "six hundred eighty-three thousand, six hundred thirty".