690683 has 4 divisors (see below), whose sum is σ = 789360. Its totient is φ = 592008.

The previous prime is 690673. The next prime is 690689. The reversal of 690683 is 386096.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 690683 - 2⁸ = 690427 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 690683.

It is not an unprimeable number, because it can be changed into a prime (690689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49328 + ... + 49341.

It is an arithmetic number, because the mean of its divisors is an integer number (197340).

2⁶⁹⁰⁶⁸³ is an apocalyptic number.

690683 is a deficient number, since it is larger than the sum of its proper divisors (98677).

690683 is an equidigital number, since it uses as much as digits as its factorization.

690683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98676.

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

The square root of 690683 is about 831.0734022937. The cubic root of 690683 is about 88.3947059748.

The spelling of 690683 in words is "six hundred ninety thousand, six hundred eighty-three".