47968218 has 12 divisors (see below), whose sum is σ = 103931178. Its totient is φ = 15989400.

The previous prime is 47968211. The next prime is 47968231. The reversal of 47968218 is 81286974.

It can be written as a sum of positive squares in only one way, i.e., 28227969 + 19740249 = 5313^2 + 4443^2 .

It is not an unprimeable number, because it can be changed into a prime (47968211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1332433 + ... + 1332468.

Almost surely, 2^47968218 is an apocalyptic number.

47968218 is an abundant number, since it is smaller than the sum of its proper divisors (55962960).

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

47968218 is a wasteful number, since it uses less digits than its factorization.

47968218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2664909 (or 2664906 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 47968218 is about 6925.9091821941. The cubic root of 47968218 is about 363.3438901252.

The spelling of 47968218 in words is "forty-seven million, nine hundred sixty-eight thousand, two hundred eighteen".