5605647 has 4 divisors (see below), whose sum is σ = 7474200. Its totient is φ = 3737096.

The previous prime is 5605619. The next prime is 5605661. The reversal of 5605647 is 7465065.

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 5605647 - 2¹⁰ = 5604623 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5605667) 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, 934272 + ... + 934277.

It is an arithmetic number, because the mean of its divisors is an integer number (1868550).

Almost surely, 2^5605647 is an apocalyptic number.

5605647 is a deficient number, since it is larger than the sum of its proper divisors (1868553).

5605647 is a wasteful number, since it uses less digits than its factorization.

5605647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1868552.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 5605647 is about 2367.6247591204. The cubic root of 5605647 is about 177.6404706995.

The spelling of 5605647 in words is "five million, six hundred five thousand, six hundred forty-seven".