5909881 has 4 divisors (see below), whose sum is σ = 6113700. Its totient is φ = 5706064.

The previous prime is 5909879. The next prime is 5909887. The reversal of 5909881 is 1889095.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1537600 + 4372281 = 1240^2 + 2091^2 .

It is a cyclic number.

It is not a de Polignac number, because 5909881 - 2¹ = 5909879 is a prime.

It is a super-2 number, since 2×5909881² = 69853386868322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5909887) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 101866 + ... + 101923.

It is an arithmetic number, because the mean of its divisors is an integer number (1528425).

Almost surely, 2^5909881 is an apocalyptic number.

It is an amenable number.

5909881 is a deficient number, since it is larger than the sum of its proper divisors (203819).

5909881 is a wasteful number, since it uses less digits than its factorization.

5909881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203818.

The product of its (nonzero) digits is 25920, while the sum is 40.

The square root of 5909881 is about 2431.0246810759. The cubic root of 5909881 is about 180.7977044537.

The spelling of 5909881 in words is "five million, nine hundred nine thousand, eight hundred eighty-one".