5621743 has 4 divisors (see below), whose sum is σ = 5773720. Its totient is φ = 5469768.

The previous prime is 5621731. The next prime is 5621753. The reversal of 5621743 is 3471265.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5621743 - 2¹³ = 5613551 is a prime.

It is a super-4 number, since 4×5621743⁴ (a number of 28 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5621753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75933 + ... + 76006.

It is an arithmetic number, because the mean of its divisors is an integer number (1443430).

Almost surely, 2^5621743 is an apocalyptic number.

5621743 is a deficient number, since it is larger than the sum of its proper divisors (151977).

5621743 is a wasteful number, since it uses less digits than its factorization.

5621743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151976.

The product of its digits is 5040, while the sum is 28.

The square root of 5621743 is about 2371.0215098139. The cubic root of 5621743 is about 177.8103332596.

The spelling of 5621743 in words is "five million, six hundred twenty-one thousand, seven hundred forty-three".