678271 has 8 divisors (see below), whose sum is σ = 746064. Its totient is φ = 611520.

The previous prime is 678253. The next prime is 678289. The reversal of 678271 is 172876.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (678253) and next prime (678289).

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 678271 - 2¹⁵ = 645503 is a prime.

678271 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2011 + ... + 2323.

It is an arithmetic number, because the mean of its divisors is an integer number (93258).

2⁶⁷⁸²⁷¹ is an apocalyptic number.

678271 is a deficient number, since it is larger than the sum of its proper divisors (67793).

678271 is a wasteful number, since it uses less digits than its factorization.

678271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521.

The product of its digits is 4704, while the sum is 31.

The square root of 678271 is about 823.5720976332. The cubic root of 678271 is about 87.8619996119.

It can be divided in two parts, 678 and 271, that added together give a palindrome (949).

The spelling of 678271 in words is "six hundred seventy-eight thousand, two hundred seventy-one".