5724021 has 8 divisors (see below), whose sum is σ = 7647840. Its totient is φ = 3808112.

The previous prime is 5724013. The next prime is 5724023. The reversal of 5724021 is 1204275.

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

It is a cyclic number.

It is not a de Polignac number, because 5724021 - 2³ = 5724013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5724023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6 + ... + 3383.

It is an arithmetic number, because the mean of its divisors is an integer number (955980).

Almost surely, 2^5724021 is an apocalyptic number.

It is an amenable number.

5724021 is a deficient number, since it is larger than the sum of its proper divisors (1923819).

5724021 is a wasteful number, since it uses less digits than its factorization.

5724021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3955.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 5724021 is about 2392.4926332175. The cubic root of 5724021 is about 178.8821774906.

Adding to 5724021 its reverse (1204275), we get a palindrome (6928296).

The spelling of 5724021 in words is "five million, seven hundred twenty-four thousand, twenty-one".