47701221 has 8 divisors (see below), whose sum is σ = 63641760. Its totient is φ = 31780752.

The previous prime is 47701217. The next prime is 47701223. The reversal of 47701221 is 12210774.

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

It is not a de Polignac number, because 47701221 - 2² = 47701217 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 47701191 and 47701200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47701223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1890 + ... + 9948.

It is an arithmetic number, because the mean of its divisors is an integer number (7955220).

Almost surely, 2^47701221 is an apocalyptic number.

It is an amenable number.

47701221 is a deficient number, since it is larger than the sum of its proper divisors (15940539).

47701221 is a wasteful number, since it uses less digits than its factorization.

47701221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10035.

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 47701221 is about 6906.6070541185. The cubic root of 47701221 is about 362.6684965388.

Adding to 47701221 its reverse (12210774), we get a palindrome (59911995).

The spelling of 47701221 in words is "forty-seven million, seven hundred one thousand, two hundred twenty-one".