689877 has 24 divisors (see below), whose sum is σ = 1100736. Its totient is φ = 430272.

The previous prime is 689873. The next prime is 689879. The reversal of 689877 is 778986.

689877 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 689877 - 2² = 689873 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689873) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4048 + ... + 4214.

It is an arithmetic number, because the mean of its divisors is an integer number (45864).

2⁶⁸⁹⁸⁷⁷ is an apocalyptic number.

It is an amenable number.

689877 is a deficient number, since it is larger than the sum of its proper divisors (410859).

689877 is a wasteful number, since it uses less digits than its factorization.

689877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199 (or 187 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The square root of 689877 is about 830.5883456924. The cubic root of 689877 is about 88.3603082049.

The spelling of 689877 in words is "six hundred eighty-nine thousand, eight hundred seventy-seven".