5728857 has 4 divisors (see below), whose sum is σ = 7638480. Its totient is φ = 3819236.

The previous prime is 5728781. The next prime is 5728859. The reversal of 5728857 is 7588275.

It is a happy number.

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 5728857 - 2⁷ = 5728729 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (5728859) 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 3 ways as a sum of consecutive naturals, for example, 954807 + ... + 954812.

It is an arithmetic number, because the mean of its divisors is an integer number (1909620).

Almost surely, 2^5728857 is an apocalyptic number.

It is an amenable number.

5728857 is a deficient number, since it is larger than the sum of its proper divisors (1909623).

5728857 is a wasteful number, since it uses less digits than its factorization.

5728857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1909622.

The product of its digits is 156800, while the sum is 42.

The square root of 5728857 is about 2393.5030812598. The cubic root of 5728857 is about 178.9325401466.

The spelling of 5728857 in words is "five million, seven hundred twenty-eight thousand, eight hundred fifty-seven".