47005218 has 32 divisors (see below), whose sum is σ = 112492800. Its totient is φ = 14462928.

The previous prime is 47005159. The next prime is 47005219. The reversal of 47005218 is 81250074.

47005218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 47005191 and 47005200.

It is not an unprimeable number, because it can be changed into a prime (47005219) 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, 32778 + ... + 34181.

It is an arithmetic number, because the mean of its divisors is an integer number (3515400).

Almost surely, 2^47005218 is an apocalyptic number.

47005218 is an abundant number, since it is smaller than the sum of its proper divisors (65487582).

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

47005218 is a wasteful number, since it uses less digits than its factorization.

47005218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66983 (or 66977 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 47005218 is about 6856.0351516018. The cubic root of 47005218 is about 360.8959627356.

The spelling of 47005218 in words is "forty-seven million, five thousand, two hundred eighteen".