47476221 has 32 divisors (see below), whose sum is σ = 71221248. Its totient is φ = 27933120.

The previous prime is 47476211. The next prime is 47476241. The reversal of 47476221 is 12267474.

It is not a de Polignac number, because 47476221 - 2⁹ = 47475709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47476201) 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 31 ways as a sum of consecutive naturals, for example, 129180 + ... + 129546.

It is an arithmetic number, because the mean of its divisors is an integer number (2225664).

Almost surely, 2^47476221 is an apocalyptic number.

It is an amenable number.

47476221 is a deficient number, since it is larger than the sum of its proper divisors (23745027).

47476221 is a wasteful number, since it uses less digits than its factorization.

47476221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521.

The product of its digits is 18816, while the sum is 33.

The square root of 47476221 is about 6890.2990501139. The cubic root of 47476221 is about 362.0973787454.

The spelling of 47476221 in words is "forty-seven million, four hundred seventy-six thousand, two hundred twenty-one".