5999641 has 4 divisors (see below), whose sum is σ = 6043572. Its totient is φ = 5955712.

The previous prime is 5999639. The next prime is 5999663. The reversal of 5999641 is 1469995.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1469995 = 5 ⋅293999.

It can be written as a sum of positive squares in 2 ways, for example, as 4822416 + 1177225 = 2196^2 + 1085^2 .

It is a cyclic number.

It is not a de Polignac number, because 5999641 - 2¹ = 5999639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5999681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21760 + ... + 22033.

It is an arithmetic number, because the mean of its divisors is an integer number (1510893).

Almost surely, 2^5999641 is an apocalyptic number.

It is an amenable number.

5999641 is a deficient number, since it is larger than the sum of its proper divisors (43931).

5999641 is a wasteful number, since it uses less digits than its factorization.

5999641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43930.

The product of its digits is 87480, while the sum is 43.

The square root of 5999641 is about 2449.4164611189. The cubic root of 5999641 is about 181.7084350649.

The spelling of 5999641 in words is "five million, nine hundred ninety-nine thousand, six hundred forty-one".