678601 has 12 divisors (see below), whose sum is σ = 861840. Its totient is φ = 528360.

The previous prime is 678599. The next prime is 678607. The reversal of 678601 is 106876.

678601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 678601 - 2¹ = 678599 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 678601.

It is not an unprimeable number, because it can be changed into a prime (678607) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91 + ... + 1168.

It is an arithmetic number, because the mean of its divisors is an integer number (71820).

2⁶⁷⁸⁶⁰¹ is an apocalyptic number.

It is an amenable number.

678601 is a deficient number, since it is larger than the sum of its proper divisors (183239).

678601 is a wasteful number, since it uses less digits than its factorization.

678601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284 (or 1277 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 678601 is about 823.7724200287. The cubic root of 678601 is about 87.8762465029.

It can be divided in two parts, 67 and 8601, that added together give a palindrome (8668).

The spelling of 678601 in words is "six hundred seventy-eight thousand, six hundred one".