5678123 has 4 divisors (see below), whose sum is σ = 6194328. Its totient is φ = 5161920.

The previous prime is 5678077. The next prime is 5678129. The reversal of 5678123 is 3218765.

It is a happy number.

5678123 is digitally balanced in base 3, 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.

It is a cyclic number.

It is not a de Polignac number, because 5678123 - 2¹⁴ = 5661739 is a prime.

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

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 5678123.

It is not an unprimeable number, because it can be changed into a prime (5678129) 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, 258086 + ... + 258107.

It is an arithmetic number, because the mean of its divisors is an integer number (1548582).

Almost surely, 2^5678123 is an apocalyptic number.

5678123 is a deficient number, since it is larger than the sum of its proper divisors (516205).

5678123 is a wasteful number, since it uses less digits than its factorization.

5678123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516204.

The product of its digits is 10080, while the sum is 32.

The square root of 5678123 is about 2382.8812391724. The cubic root of 5678123 is about 178.4027722327.

The spelling of 5678123 in words is "five million, six hundred seventy-eight thousand, one hundred twenty-three".