5991128 has 32 divisors (see below), whose sum is σ = 13199760. Its totient is φ = 2513280.

The previous prime is 5991113. The next prime is 5991131. The reversal of 5991128 is 8211995.

It is a super-2 number, since 2×5991128² = 71787229424768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1475 + ... + 3762.

Almost surely, 2^5991128 is an apocalyptic number.

It is an amenable number.

5991128 is an abundant number, since it is smaller than the sum of its proper divisors (7208632).

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

5991128 is a wasteful number, since it uses less digits than its factorization.

5991128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5267 (or 5263 counting only the distinct ones).

The product of its digits is 6480, while the sum is 35.

The square root of 5991128 is about 2447.6780834088. The cubic root of 5991128 is about 181.6224512469.

The spelling of 5991128 in words is "five million, nine hundred ninety-one thousand, one hundred twenty-eight".