5671549 has 4 divisors (see below), whose sum is σ = 6107836. Its totient is φ = 5235264.

The previous prime is 5671517. The next prime is 5671553. The reversal of 5671549 is 9451765.

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 3367225 + 2304324 = 1835^2 + 1518^2 .

It is a cyclic number.

It is not a de Polignac number, because 5671549 - 2⁵ = 5671517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5671579) 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, 218124 + ... + 218149.

It is an arithmetic number, because the mean of its divisors is an integer number (1526959).

Almost surely, 2^5671549 is an apocalyptic number.

It is an amenable number.

5671549 is a deficient number, since it is larger than the sum of its proper divisors (436287).

5671549 is a wasteful number, since it uses less digits than its factorization.

5671549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436286.

The product of its digits is 37800, while the sum is 37.

The square root of 5671549 is about 2381.5014171736. The cubic root of 5671549 is about 178.3338954379. Note that the first 3 decimals are identical.

It can be divided in two parts, 567 and 1549, that added together give a square (2116 = 46²).

The spelling of 5671549 in words is "five million, six hundred seventy-one thousand, five hundred forty-nine".