5641786 has 12 divisors (see below), whose sum is σ = 8653338. Its totient is φ = 2758712.

The previous prime is 5641781. The next prime is 5641787. The reversal of 5641786 is 6871465.

It can be written as a sum of positive squares in only one way, i.e., 4473225 + 1168561 = 2115^2 + 1081^2 .

It is not an unprimeable number, because it can be changed into a prime (5641781) 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 5 ways as a sum of consecutive naturals, for example, 3780 + ... + 5056.

Almost surely, 2^5641786 is an apocalyptic number.

5641786 is a deficient number, since it is larger than the sum of its proper divisors (3011552).

5641786 is a wasteful number, since it uses less digits than its factorization.

5641786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1373 (or 1326 counting only the distinct ones).

The product of its digits is 40320, while the sum is 37.

The square root of 5641786 is about 2375.2444084767. The cubic root of 5641786 is about 178.0213962413.

The spelling of 5641786 in words is "five million, six hundred forty-one thousand, seven hundred eighty-six".