5549869 has 4 divisors (see below), whose sum is σ = 5976796. Its totient is φ = 5122944.

The previous prime is 5549839. The next prime is 5549879. The reversal of 5549869 is 9689455.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9689455 = 5 ⋅1937891.

It can be written as a sum of positive squares in 2 ways, for example, as 927369 + 4622500 = 963^2 + 2150^2 .

It is a cyclic number.

It is not a de Polignac number, because 5549869 - 2¹⁷ = 5418797 is a prime.

It is a super-2 number, since 2×5549869² = 61602091834322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5549839) 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, 213444 + ... + 213469.

It is an arithmetic number, because the mean of its divisors is an integer number (1494199).

Almost surely, 2^5549869 is an apocalyptic number.

It is an amenable number.

5549869 is a deficient number, since it is larger than the sum of its proper divisors (426927).

5549869 is a wasteful number, since it uses less digits than its factorization.

5549869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426926.

The product of its digits is 388800, while the sum is 46.

The square root of 5549869 is about 2355.8159945123. The cubic root of 5549869 is about 177.0493122309.

The spelling of 5549869 in words is "five million, five hundred forty-nine thousand, eight hundred sixty-nine".