47478212 has 24 divisors (see below), whose sum is σ = 88252416. Its totient is φ = 22272128.

The previous prime is 47478203. The next prime is 47478217. The reversal of 47478212 is 21287474.

It is a happy number.

47478212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×47478212² = 4508361229433888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47478217) 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, 25133 + ... + 26955.

It is an arithmetic number, because the mean of its divisors is an integer number (3677184).

Almost surely, 2^47478212 is an apocalyptic number.

It is an amenable number.

47478212 is a deficient number, since it is larger than the sum of its proper divisors (40774204).

47478212 is a wasteful number, since it uses less digits than its factorization.

47478212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2227 (or 2225 counting only the distinct ones).

The product of its digits is 25088, while the sum is 35.

The square root of 47478212 is about 6890.4435270888. The cubic root of 47478212 is about 362.1024404078.

The spelling of 47478212 in words is "forty-seven million, four hundred seventy-eight thousand, two hundred twelve".