5991228 has 36 divisors (see below), whose sum is σ = 15252328. Its totient is φ = 1982880.

The previous prime is 5991221. The next prime is 5991229. The reversal of 5991228 is 8221995.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 5991192 and 5991201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5991221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5358 + ... + 6378.

Almost surely, 2^5991228 is an apocalyptic number.

It is an amenable number.

5991228 is an abundant number, since it is smaller than the sum of its proper divisors (9261100).

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

5991228 is a wasteful number, since it uses less digits than its factorization.

5991228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1194 (or 1189 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The square root of 5991228 is about 2447.6985108465. The cubic root of 5991228 is about 181.6234617491.

The spelling of 5991228 in words is "five million, nine hundred ninety-one thousand, two hundred twenty-eight".