47668668 has 24 divisors (see below), whose sum is σ = 111379968. Its totient is φ = 15867696.

The previous prime is 47668661. The next prime is 47668693. The reversal of 47668668 is 86686674.

It is a self number, because there is not a number n which added to its sum of digits gives 47668668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47668661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8055 + ... + 12657.

It is an arithmetic number, because the mean of its divisors is an integer number (4640832).

Almost surely, 2^47668668 is an apocalyptic number.

It is an amenable number.

47668668 is an abundant number, since it is smaller than the sum of its proper divisors (63711300).

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

47668668 is a wasteful number, since it uses less digits than its factorization.

47668668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5473 (or 5471 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 51.

The square root of 47668668 is about 6904.2499954738. The cubic root of 47668668 is about 362.5859784960.

The spelling of 47668668 in words is "forty-seven million, six hundred sixty-eight thousand, six hundred sixty-eight".