47664216 has 24 divisors (see below), whose sum is σ = 129090780. Its totient is φ = 15888048.

The previous prime is 47664187. The next prime is 47664229. The reversal of 47664216 is 61246674.

47664216 is a `hidden beast` number, since 4 + 7 + 6 + 642 + 1 + 6 = 666.

47664216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 330930 + ... + 331073.

Almost surely, 2^47664216 is an apocalyptic number.

It is an amenable number.

47664216 is an abundant number, since it is smaller than the sum of its proper divisors (81426564).

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

47664216 is a wasteful number, since it uses less digits than its factorization.

47664216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662015 (or 662008 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 47664216 is about 6903.9275778357. The cubic root of 47664216 is about 362.5746902775.

The spelling of 47664216 in words is "forty-seven million, six hundred sixty-four thousand, two hundred sixteen".