47933221 has 8 divisors (see below), whose sum is σ = 55899200. Its totient is φ = 41085324.

The previous prime is 47933209. The next prime is 47933227. The reversal of 47933221 is 12233974.

It is not a de Polignac number, because 47933221 - 2⁵ = 47933189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47933227) 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, 69531 + ... + 70216.

It is an arithmetic number, because the mean of its divisors is an integer number (6987400).

Almost surely, 2^47933221 is an apocalyptic number.

It is an amenable number.

47933221 is a deficient number, since it is larger than the sum of its proper divisors (7965979).

47933221 is an equidigital number, since it uses as much as digits as its factorization.

47933221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139768 (or 139754 counting only the distinct ones).

The product of its digits is 9072, while the sum is 31.

The square root of 47933221 is about 6923.3821936970. The cubic root of 47933221 is about 363.2555049376.

The spelling of 47933221 in words is "forty-seven million, nine hundred thirty-three thousand, two hundred twenty-one".