5643420 has 24 divisors (see below), whose sum is σ = 15801744. Its totient is φ = 1504896.

The previous prime is 5643413. The next prime is 5643427. The reversal of 5643420 is 243465.

It is an interprime number because it is at equal distance from previous prime (5643413) and next prime (5643427).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5643427) 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 7 ways as a sum of consecutive naturals, for example, 46969 + ... + 47088.

It is an arithmetic number, because the mean of its divisors is an integer number (658406).

Almost surely, 2^5643420 is an apocalyptic number.

It is an amenable number.

5643420 is an abundant number, since it is smaller than the sum of its proper divisors (10158324).

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

5643420 is a wasteful number, since it uses less digits than its factorization.

5643420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94069 (or 94067 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 5643420 is about 2375.5883481782. The cubic root of 5643420 is about 178.0385810407.

Adding to 5643420 its reverse (243465), we get a palindrome (5886885).

The spelling of 5643420 in words is "five million, six hundred forty-three thousand, four hundred twenty".