678107 has 8 divisors (see below), whose sum is σ = 714000. Its totient is φ = 643104.

The previous prime is 678103. The next prime is 678133. The reversal of 678107 is 701876.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 678107 - 2² = 678103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 678107.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 678107.

It is not an unprimeable number, because it can be changed into a prime (678101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1769 + ... + 2117.

It is an arithmetic number, because the mean of its divisors is an integer number (89250).

2⁶⁷⁸¹⁰⁷ is an apocalyptic number.

678107 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

678107 is a deficient number, since it is larger than the sum of its proper divisors (35893).

678107 is a wasteful number, since it uses less digits than its factorization.

678107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445.

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 678107 is about 823.4725253462. The cubic root of 678107 is about 87.8549176199.

It can be divided in two parts, 67 and 8107, that multiplied together give a square (543169 = 737²).

The spelling of 678107 in words is "six hundred seventy-eight thousand, one hundred seven".