5447947 has 4 divisors (see below), whose sum is σ = 5457816. Its totient is φ = 5438080.

The previous prime is 5447933. The next prime is 5447951. The reversal of 5447947 is 7497445.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5447947 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

5447947 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5447977) 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, 4054 + ... + 5227.

It is an arithmetic number, because the mean of its divisors is an integer number (1364454).

Almost surely, 2^5447947 is an apocalyptic number.

5447947 is a deficient number, since it is larger than the sum of its proper divisors (9869).

5447947 is an equidigital number, since it uses as much as digits as its factorization.

5447947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9868.

The product of its digits is 141120, while the sum is 40.

The square root of 5447947 is about 2334.0837602794. The cubic root of 5447947 is about 175.9587864070.

The spelling of 5447947 in words is "five million, four hundred forty-seven thousand, nine hundred forty-seven".