47449 has 4 divisors (see below), whose sum is σ = 49536. Its totient is φ = 45364.

The previous prime is 47441. The next prime is 47459. The reversal of 47449 is 94474.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94474 = 2 ⋅47237.

It is a cyclic number.

It is not a de Polignac number, because 47449 - 2³ = 47441 is a prime.

It is a Duffinian number.

47449 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (47441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1009 + ... + 1054.

It is an arithmetic number, because the mean of its divisors is an integer number (12384).

2⁴⁷⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

47449 is a deficient number, since it is larger than the sum of its proper divisors (2087).

47449 is a wasteful number, since it uses less digits than its factorization.

47449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2086.

The product of its digits is 4032, while the sum is 28.

The square root of 47449 is about 217.8279137301. The cubic root of 47449 is about 36.2028161378.

It can be divided in two parts, 4744 and 9, that added together give a triangular number (4753 = T₉₇).

The spelling of 47449 in words is "forty-seven thousand, four hundred forty-nine".