5647689 has 12 divisors (see below), whose sum is σ = 8637876. Its totient is φ = 3543552.

The previous prime is 5647669. The next prime is 5647699. The reversal of 5647689 is 9867465.

5647689 is a `hidden beast` number, since 564 + 7 + 6 + 89 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5212089 + 435600 = 2283^2 + 660^2 .

It is not a de Polignac number, because 5647689 - 2⁷ = 5647561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5647639) 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 11 ways as a sum of consecutive naturals, for example, 18304 + ... + 18609.

It is an arithmetic number, because the mean of its divisors is an integer number (719823).

Almost surely, 2^5647689 is an apocalyptic number.

It is an amenable number.

5647689 is a deficient number, since it is larger than the sum of its proper divisors (2990187).

5647689 is a wasteful number, since it uses less digits than its factorization.

5647689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36936 (or 36933 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 5647689 is about 2376.4866925779. The cubic root of 5647689 is about 178.0834625213.

It can be divided in two parts, 56476 and 89, that added together give a palindrome (56565).

The spelling of 5647689 in words is "five million, six hundred forty-seven thousand, six hundred eighty-nine".