5628391 has 8 divisors (see below), whose sum is σ = 5935104. Its totient is φ = 5329560.

The previous prime is 5628379. The next prime is 5628397. The reversal of 5628391 is 1938265.

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 5628391 - 2¹¹ = 5626343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5628397) 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, 475 + ... + 3388.

It is an arithmetic number, because the mean of its divisors is an integer number (741888).

Almost surely, 2^5628391 is an apocalyptic number.

5628391 is a deficient number, since it is larger than the sum of its proper divisors (306713).

5628391 is a wasteful number, since it uses less digits than its factorization.

5628391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3941.

The product of its digits is 12960, while the sum is 34.

The square root of 5628391 is about 2372.4230229873. The cubic root of 5628391 is about 177.8803956016.

The spelling of 5628391 in words is "five million, six hundred twenty-eight thousand, three hundred ninety-one".