689395 has 8 divisors (see below), whose sum is σ = 945504. Its totient is φ = 472704.

The previous prime is 689393. The next prime is 689411. The reversal of 689395 is 593986.

689395 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 689395 - 2¹ = 689393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (689393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9814 + ... + 9883.

It is an arithmetic number, because the mean of its divisors is an integer number (118188).

2⁶⁸⁹³⁹⁵ is an apocalyptic number.

689395 is a deficient number, since it is larger than the sum of its proper divisors (256109).

689395 is a wasteful number, since it uses less digits than its factorization.

689395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19709.

The product of its digits is 58320, while the sum is 40.

The square root of 689395 is about 830.2981392247. The cubic root of 689395 is about 88.3397250230.

It can be divided in two parts, 6 and 89395, that added together give a square (89401 = 299²).

The spelling of 689395 in words is "six hundred eighty-nine thousand, three hundred ninety-five".