5678605 has 4 divisors (see below), whose sum is σ = 6814332. Its totient is φ = 4542880.

The previous prime is 5678593. The next prime is 5678609. The reversal of 5678605 is 5068765.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4088484 + 1590121 = 2022^2 + 1261^2 .

It is not a de Polignac number, because 5678605 - 2¹¹ = 5676557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5678609) 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, 567856 + ... + 567865.

It is an arithmetic number, because the mean of its divisors is an integer number (1703583).

Almost surely, 2^5678605 is an apocalyptic number.

It is an amenable number.

5678605 is a deficient number, since it is larger than the sum of its proper divisors (1135727).

5678605 is a wasteful number, since it uses less digits than its factorization.

5678605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135726.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 5678605 is about 2382.9823750922. The cubic root of 5678605 is about 178.4078201275.

The spelling of 5678605 in words is "five million, six hundred seventy-eight thousand, six hundred five".