5641605 has 24 divisors (see below), whose sum is σ = 9835488. Its totient is φ = 2991456.

The previous prime is 5641577. The next prime is 5641607. The reversal of 5641605 is 5061465.

It is a happy number.

5641605 is a `hidden beast` number, since 56 + 4 + 1 + 605 = 666.

It is not a de Polignac number, because 5641605 - 2⁶ = 5641541 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5641607) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12514 + ... + 12956.

It is an arithmetic number, because the mean of its divisors is an integer number (409812).

Almost surely, 2^5641605 is an apocalyptic number.

It is an amenable number.

5641605 is a deficient number, since it is larger than the sum of its proper divisors (4193883).

5641605 is a wasteful number, since it uses less digits than its factorization.

5641605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737 (or 734 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 5641605 is about 2375.2063068289. The cubic root of 5641605 is about 178.0194924578.

The spelling of 5641605 in words is "five million, six hundred forty-one thousand, six hundred five".