683690 has 16 divisors (see below), whose sum is σ = 1406592. Its totient is φ = 234384.

The previous prime is 683687. The next prime is 683693. The reversal of 683690 is 96386.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (683687) and next prime (683693).

It is a super-2 number, since 2×683690² = 934864032200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (683693) 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 7 ways as a sum of consecutive naturals, for example, 4814 + ... + 4953.

It is an arithmetic number, because the mean of its divisors is an integer number (87912).

2⁶⁸³⁶⁹⁰ is an apocalyptic number.

683690 is an abundant number, since it is smaller than the sum of its proper divisors (722902).

It is a weird number, because it is abundant, but not a pseudoperfect number.

683690 is a wasteful number, since it uses less digits than its factorization.

683690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9781.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 683690 is about 826.8554891878. The cubic root of 683690 is about 88.0953683720.

The spelling of 683690 in words is "six hundred eighty-three thousand, six hundred ninety".