678232103 has 4 divisors (see below), whose sum is σ = 680003328. Its totient is φ = 676460880.

The previous prime is 678232097. The next prime is 678232111. The reversal of 678232103 is 301232876.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 678232103 - 2²⁰ = 677183527 is a prime.

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 678232103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678232183) 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 3 ways as a sum of consecutive naturals, for example, 885038 + ... + 885803.

It is an arithmetic number, because the mean of its divisors is an integer number (170000832).

Almost surely, 2^678232103 is an apocalyptic number.

678232103 is a deficient number, since it is larger than the sum of its proper divisors (1771225).

678232103 is a wasteful number, since it uses less digits than its factorization.

678232103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1771224.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 678232103 is about 26042.8896822146. The cubic root of 678232103 is about 878.6032003077.

Adding to 678232103 its reverse (301232876), we get a palindrome (979464979).

The spelling of 678232103 in words is "six hundred seventy-eight million, two hundred thirty-two thousand, one hundred three".