5728638 has 16 divisors (see below), whose sum is σ = 11534976. Its totient is φ = 1896600.

The previous prime is 5728627. The next prime is 5728651. The reversal of 5728638 is 8368275.

It is a junction number, because it is equal to n+sod(n) for n = 5728596 and 5728605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2256 + ... + 4067.

It is an arithmetic number, because the mean of its divisors is an integer number (720936).

Almost surely, 2^5728638 is an apocalyptic number.

5728638 is an abundant number, since it is smaller than the sum of its proper divisors (5806338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5728638 is a wasteful number, since it uses less digits than its factorization.

5728638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6479.

The product of its digits is 80640, while the sum is 39.

The square root of 5728638 is about 2393.4573319782. The cubic root of 5728638 is about 178.9302600684.

The spelling of 5728638 in words is "five million, seven hundred twenty-eight thousand, six hundred thirty-eight".