5721243 has 12 divisors (see below), whose sum is σ = 8385384. Its totient is φ = 3467200.

The previous prime is 5721241. The next prime is 5721269. The reversal of 5721243 is 3421275.

It is not a de Polignac number, because 5721243 - 2¹ = 5721241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5721241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7518 + ... + 8243.

It is an arithmetic number, because the mean of its divisors is an integer number (698782).

Almost surely, 2^5721243 is an apocalyptic number.

5721243 is a deficient number, since it is larger than the sum of its proper divisors (2664141).

5721243 is a wasteful number, since it uses less digits than its factorization.

5721243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15786 (or 15775 counting only the distinct ones).

The product of its digits is 1680, while the sum is 24.

The square root of 5721243 is about 2391.9119967089. The cubic root of 5721243 is about 178.8532342528.

Subtracting from 5721243 its reverse (3421275), we obtain a cube (2299968 = 132³).

The spelling of 5721243 in words is "five million, seven hundred twenty-one thousand, two hundred forty-three".