5539644 has 48 divisors (see below), whose sum is σ = 15671040. Its totient is φ = 1678320.

The previous prime is 5539631. The next prime is 5539657. The reversal of 5539644 is 4469355.

It is a happy number.

5539644 is a `hidden beast` number, since 5 + 5 + 3 + 9 + 644 = 666.

It is an interprime number because it is at equal distance from previous prime (5539631) and next prime (5539657).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 5539599 and 5539608.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1144 + ... + 3519.

It is an arithmetic number, because the mean of its divisors is an integer number (326480).

Almost surely, 2^5539644 is an apocalyptic number.

5539644 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

5539644 is an abundant number, since it is smaller than the sum of its proper divisors (10131396).

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

5539644 is a wasteful number, since it uses less digits than its factorization.

5539644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4687 (or 4679 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 5539644 is about 2353.6448330196. The cubic root of 5539644 is about 176.9405143397.

The spelling of 5539644 in words is "five million, five hundred thirty-nine thousand, six hundred forty-four".