678801 has 4 divisors (see below), whose sum is σ = 905072. Its totient is φ = 452532.

The previous prime is 678779. The next prime is 678809. The reversal of 678801 is 108876.

678801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 678801 - 2⁹ = 678289 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (678809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113131 + ... + 113136.

It is an arithmetic number, because the mean of its divisors is an integer number (226268).

2⁶⁷⁸⁸⁰¹ is an apocalyptic number.

It is an amenable number.

678801 is a deficient number, since it is larger than the sum of its proper divisors (226271).

678801 is a wasteful number, since it uses less digits than its factorization.

678801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226270.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 678801 is about 823.8938038364. The cubic root of 678801 is about 87.8848787344.

The spelling of 678801 in words is "six hundred seventy-eight thousand, eight hundred one".