47045221 has 8 divisors (see below), whose sum is σ = 48780000. Its totient is φ = 45318000.

The previous prime is 47045179. The next prime is 47045237. The reversal of 47045221 is 12254074.

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

It is a cyclic number.

It is not a de Polignac number, because 47045221 - 2¹⁵ = 47012453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47045021) 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, 12846 + ... + 16096.

It is an arithmetic number, because the mean of its divisors is an integer number (6097500).

Almost surely, 2^47045221 is an apocalyptic number.

It is an amenable number.

47045221 is a deficient number, since it is larger than the sum of its proper divisors (1734779).

47045221 is a wasteful number, since it uses less digits than its factorization.

47045221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3779.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 47045221 is about 6858.9518878616. The cubic root of 47045221 is about 360.9983118528.

Adding to 47045221 its reverse (12254074), we get a palindrome (59299295).

The spelling of 47045221 in words is "forty-seven million, forty-five thousand, two hundred twenty-one".