5628231 has 32 divisors (see below), whose sum is σ = 9658880. Its totient is φ = 3172608.

The previous prime is 5628157. The next prime is 5628239. The reversal of 5628231 is 1328265.

5628231 is a `hidden beast` number, since 5 + 628 + 2 + 31 = 666.

It is not a de Polignac number, because 5628231 - 2⁹ = 5627719 is a prime.

It is a super-2 number, since 2×5628231² = 63353968378722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

5628231 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 5628195 and 5628204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5628239) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18180 + ... + 18486.

It is an arithmetic number, because the mean of its divisors is an integer number (301840).

Almost surely, 2^5628231 is an apocalyptic number.

5628231 is a deficient number, since it is larger than the sum of its proper divisors (4030649).

5628231 is a wasteful number, since it uses less digits than its factorization.

5628231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420 (or 414 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 5628231 is about 2372.3893019486. The cubic root of 5628231 is about 177.8787100321.

The spelling of 5628231 in words is "five million, six hundred twenty-eight thousand, two hundred thirty-one".