678241 has 8 divisors (see below), whose sum is σ = 705024. Its totient is φ = 652080.

The previous prime is 678229. The next prime is 678253. The reversal of 678241 is 142876.

It is an interprime number because it is at equal distance from previous prime (678229) and next prime (678253).

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 678241 - 2¹³ = 670049 is a prime.

It is a Duffinian number.

678241 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (678211) 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, 3456 + ... + 3646.

It is an arithmetic number, because the mean of its divisors is an integer number (88128).

2⁶⁷⁸²⁴¹ is an apocalyptic number.

It is an amenable number.

678241 is a deficient number, since it is larger than the sum of its proper divisors (26783).

678241 is a wasteful number, since it uses less digits than its factorization.

678241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311.

The product of its digits is 2688, while the sum is 28.

The square root of 678241 is about 823.5538840902. The cubic root of 678241 is about 87.8607042109.

It can be divided in two parts, 678 and 241, that added together give a palindrome (919).

The spelling of 678241 in words is "six hundred seventy-eight thousand, two hundred forty-one".