5728217 has 4 divisors (see below), whose sum is σ = 6248976. Its totient is φ = 5207460.

The previous prime is 5728207. The next prime is 5728223. The reversal of 5728217 is 7128275.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5728217 - 2⁶ = 5728153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5728207) 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, 260363 + ... + 260384.

It is an arithmetic number, because the mean of its divisors is an integer number (1562244).

Almost surely, 2^5728217 is an apocalyptic number.

It is an amenable number.

5728217 is a deficient number, since it is larger than the sum of its proper divisors (520759).

5728217 is a wasteful number, since it uses less digits than its factorization.

5728217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520758.

The product of its digits is 7840, while the sum is 32.

The square root of 5728217 is about 2393.3693822726. The cubic root of 5728217 is about 178.9258767412.

The spelling of 5728217 in words is "five million, seven hundred twenty-eight thousand, two hundred seventeen".