47257212 has 48 divisors (see below), whose sum is σ = 118202112. Its totient is φ = 14641920.

The previous prime is 47257183. The next prime is 47257213. The reversal of 47257212 is 21275274.

47257212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 47257212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47257213) 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 15 ways as a sum of consecutive naturals, for example, 15537 + ... + 18327.

It is an arithmetic number, because the mean of its divisors is an integer number (2462544).

Almost surely, 2^47257212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47257212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59101056).

47257212 is an abundant number, since it is smaller than the sum of its proper divisors (70944900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47257212 is a wasteful number, since it uses less digits than its factorization.

47257212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2898 (or 2896 counting only the distinct ones).

The product of its digits is 7840, while the sum is 30.

The square root of 47257212 is about 6874.3881182255. The cubic root of 47257212 is about 361.5397322842.

The spelling of 47257212 in words is "forty-seven million, two hundred fifty-seven thousand, two hundred twelve".