5628381 has 8 divisors (see below), whose sum is σ = 8186784. Its totient is φ = 3411120.

The previous prime is 5628379. The next prime is 5628397. The reversal of 5628381 is 1838265.

It is a happy number.

5628381 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5628381 - 2¹ = 5628379 is a prime.

It is a super-2 number, since 2×5628381² = 63357345362322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 170557 = 5628381 / (5 + 6 + 2 + 8 + 3 + 8 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5628331) 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, 85246 + ... + 85311.

It is an arithmetic number, because the mean of its divisors is an integer number (1023348).

Almost surely, 2^5628381 is an apocalyptic number.

It is an amenable number.

5628381 is a deficient number, since it is larger than the sum of its proper divisors (2558403).

5628381 is a wasteful number, since it uses less digits than its factorization.

5628381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170571.

The product of its digits is 11520, while the sum is 33.

The square root of 5628381 is about 2372.4209154364. The cubic root of 5628381 is about 177.8802902545.

The spelling of 5628381 in words is "five million, six hundred twenty-eight thousand, three hundred eighty-one".