689795 has 16 divisors (see below), whose sum is σ = 894240. Its totient is φ = 509184.

The previous prime is 689789. The next prime is 689797. The reversal of 689795 is 597986.

It is a cyclic number.

It is not a de Polignac number, because 689795 - 2⁴ = 689779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (689797) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4967 + ... + 5103.

It is an arithmetic number, because the mean of its divisors is an integer number (55890).

2⁶⁸⁹⁷⁹⁵ is an apocalyptic number.

689795 is a deficient number, since it is larger than the sum of its proper divisors (204445).

689795 is a wasteful number, since it uses less digits than its factorization.

689795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214.

The product of its digits is 136080, while the sum is 44.

The square root of 689795 is about 830.5389816258. The cubic root of 689795 is about 88.3568071787.

Subtracting from 689795 its reverse (597986), we obtain a square (91809 = 303²).

The spelling of 689795 in words is "six hundred eighty-nine thousand, seven hundred ninety-five".