683899 has 2 divisors, whose sum is σ = 683900. Its totient is φ = 683898.

The previous prime is 683887. The next prime is 683909. The reversal of 683899 is 998386.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-683899 is a prime.

683899 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (683819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341949 + 341950.

It is an arithmetic number, because the mean of its divisors is an integer number (341950).

2⁶⁸³⁸⁹⁹ is an apocalyptic number.

683899 is a deficient number, since it is larger than the sum of its proper divisors (1).

683899 is an equidigital number, since it uses as much as digits as its factorization.

683899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 43.

The square root of 683899 is about 826.9818619535. The cubic root of 683899 is about 88.1043442023.

The spelling of 683899 in words is "six hundred eighty-three thousand, eight hundred ninety-nine".