47221671 has 8 divisors (see below), whose sum is σ = 71956864. Its totient is φ = 26983800.

The previous prime is 47221661. The next prime is 47221673. The reversal of 47221671 is 17612274.

47221671 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 47221671 - 2⁶ = 47221607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47221673) 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 7 ways as a sum of consecutive naturals, for example, 1124305 + ... + 1124346.

It is an arithmetic number, because the mean of its divisors is an integer number (8994608).

Almost surely, 2^47221671 is an apocalyptic number.

47221671 is a deficient number, since it is larger than the sum of its proper divisors (24735193).

47221671 is a wasteful number, since it uses less digits than its factorization.

47221671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2248661.

The product of its digits is 4704, while the sum is 30.

The square root of 47221671 is about 6871.8026019379. The cubic root of 47221671 is about 361.4490744728.

The spelling of 47221671 in words is "forty-seven million, two hundred twenty-one thousand, six hundred seventy-one".