47444547 has 8 divisors (see below), whose sum is σ = 63451840. Its totient is φ = 31533480.

The previous prime is 47444531. The next prime is 47444557. The reversal of 47444547 is 74544474.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47444547 - 2⁴ = 47444531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47444557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22897 + ... + 24882.

It is an arithmetic number, because the mean of its divisors is an integer number (7931480).

Almost surely, 2^47444547 is an apocalyptic number.

47444547 is a deficient number, since it is larger than the sum of its proper divisors (16007293).

47444547 is a wasteful number, since it uses less digits than its factorization.

47444547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48113.

The product of its digits is 250880, while the sum is 39.

The square root of 47444547 is about 6888.0002177700. Note that the first 3 decimals coincide. The cubic root of 47444547 is about 362.0168358011.

The spelling of 47444547 in words is "forty-seven million, four hundred forty-four thousand, five hundred forty-seven".