683929 has 3 divisors (see below), whose sum is σ = 684757. Its totient is φ = 683102.

The previous prime is 683923. The next prime is 683933. The reversal of 683929 is 929386.

The square root of 683929 is 827.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a de Polignac number, because none of the positive numbers 2^k-683929 is a prime.

It is a Duffinian number.

683929 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (683923) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 414 + ... + 1240.

683929 is a Friedman number, since it can be written as (98+9^(6-3))^2, using all its digits and the basic arithmetic operations.

2⁶⁸³⁹²⁹ is an apocalyptic number.

683929 is the 827-th square number.

683929 is the 414-th centered octagonal number.

It is an amenable number.

683929 is a deficient number, since it is larger than the sum of its proper divisors (828).

683929 is an frugal number, since it uses more digits than its factorization.

683929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1654 (or 827 counting only the distinct ones).

The product of its digits is 23328, while the sum is 37.

The cubic root of 683929 is about 88.1056324489.

The spelling of 683929 in words is "six hundred eighty-three thousand, nine hundred twenty-nine".