5721838 has 8 divisors (see below), whose sum is σ = 8782488. Its totient is φ = 2794344.

The previous prime is 5721829. The next prime is 5721839. The reversal of 5721838 is 8381275.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5721839) 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, 33181 + ... + 33352.

It is an arithmetic number, because the mean of its divisors is an integer number (1097811).

Almost surely, 2^5721838 is an apocalyptic number.

5721838 is a deficient number, since it is larger than the sum of its proper divisors (3060650).

5721838 is a wasteful number, since it uses less digits than its factorization.

5721838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66578.

The product of its digits is 13440, while the sum is 34.

The square root of 5721838 is about 2392.0363709609. The cubic root of 5721838 is about 178.8594341867.

The spelling of 5721838 in words is "five million, seven hundred twenty-one thousand, eight hundred thirty-eight".