689271 has 8 divisors (see below), whose sum is σ = 1002624. Its totient is φ = 417720.

The previous prime is 689267. The next prime is 689279. The reversal of 689271 is 172986.

689271 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 not a de Polignac number, because 689271 - 2² = 689267 is a prime.

It is a super-2 number, since 2×689271² = 950189022882, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 20887 = 689271 / (6 + 8 + 9 + 2 + 7 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689279) 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, 10411 + ... + 10476.

It is an arithmetic number, because the mean of its divisors is an integer number (125328).

2⁶⁸⁹²⁷¹ is an apocalyptic number.

689271 is a deficient number, since it is larger than the sum of its proper divisors (313353).

689271 is a wasteful number, since it uses less digits than its factorization.

689271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20901.

The product of its digits is 6048, while the sum is 33.

The square root of 689271 is about 830.2234638939. The cubic root of 689271 is about 88.3344282132.

It can be divided in two parts, 68 and 9271, that added together give a palindrome (9339).

The spelling of 689271 in words is "six hundred eighty-nine thousand, two hundred seventy-one".