689883 has 4 divisors (see below), whose sum is σ = 919848. Its totient is φ = 459920.

The previous prime is 689879. The next prime is 689891. The reversal of 689883 is 388986.

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 689883 - 2² = 689879 is a prime.

It is a D-number.

689883 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 689883.

It is not an unprimeable number, because it can be changed into a prime (689803) 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 3 ways as a sum of consecutive naturals, for example, 114978 + ... + 114983.

It is an arithmetic number, because the mean of its divisors is an integer number (229962).

2⁶⁸⁹⁸⁸³ is an apocalyptic number.

689883 is a deficient number, since it is larger than the sum of its proper divisors (229965).

689883 is a wasteful number, since it uses less digits than its factorization.

689883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229964.

The product of its digits is 82944, while the sum is 42.

The square root of 689883 is about 830.5919575821. The cubic root of 689883 is about 88.3605643666.

The spelling of 689883 in words is "six hundred eighty-nine thousand, eight hundred eighty-three".