47484449 has 4 divisors (see below), whose sum is σ = 48380436. Its totient is φ = 46588464.

The previous prime is 47484421. The next prime is 47484457. The reversal of 47484449 is 94448474.

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 24750625 + 22733824 = 4975^2 + 4768^2 .

It is a cyclic number.

It is not a de Polignac number, because 47484449 - 2⁸ = 47484193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47484419) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 447914 + ... + 448019.

It is an arithmetic number, because the mean of its divisors is an integer number (12095109).

Almost surely, 2^47484449 is an apocalyptic number.

It is an amenable number.

47484449 is a deficient number, since it is larger than the sum of its proper divisors (895987).

47484449 is an equidigital number, since it uses as much as digits as its factorization.

47484449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895986.

The product of its digits is 516096, while the sum is 44.

The square root of 47484449 is about 6890.8960955742. The cubic root of 47484449 is about 362.1182956387.

The spelling of 47484449 in words is "forty-seven million, four hundred eighty-four thousand, four hundred forty-nine".