5643846 has 48 divisors (see below), whose sum is σ = 13366080. Its totient is φ = 1710720.

The previous prime is 5643821. The next prime is 5643851. The reversal of 5643846 is 6483465.

5643846 = T₅₃ + T₅₄ + ... + T₃₂₃.

5643846 is a `hidden beast` number, since 5 + 643 + 8 + 4 + 6 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5643846.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 20691 + ... + 20961.

It is an arithmetic number, because the mean of its divisors is an integer number (278460).

Almost surely, 2^5643846 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5643846, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6683040).

5643846 is an abundant number, since it is smaller than the sum of its proper divisors (7722234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5643846 is a wasteful number, since it uses less digits than its factorization.

5643846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381 (or 378 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 5643846 is about 2375.6780084852. The cubic root of 5643846 is about 178.0430607432.

The spelling of 5643846 in words is "five million, six hundred forty-three thousand, eight hundred forty-six".