5999648 has 18 divisors (see below), whose sum is σ = 11839149. Its totient is φ = 2992896.

The previous prime is 5999639. The next prime is 5999663. The reversal of 5999648 is 8469995.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 4892944 + 1106704 = 2212^2 + 1052^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=1732.

It is a super-2 number, since 2×5999648² = 71991552247808, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5999596 and 5999605.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 13640 + ... + 14072.

Almost surely, 2^5999648 is an apocalyptic number.

It is an amenable number.

5999648 is a deficient number, since it is larger than the sum of its proper divisors (5839501).

5999648 is an frugal number, since it uses more digits than its factorization.

5999648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876 (or 435 counting only the distinct ones).

The product of its digits is 699840, while the sum is 50.

The square root of 5999648 is about 2449.4178900302. The cubic root of 5999648 is about 181.7085057335.

Multiplying 5999648 by its sum of digits (50), we get a square (299982400 = 17320²).

The spelling of 5999648 in words is "five million, nine hundred ninety-nine thousand, six hundred forty-eight".