47771668 has 24 divisors (see below), whose sum is σ = 97496000. Its totient is φ = 20472984.

The previous prime is 47771663. The next prime is 47771707. The reversal of 47771668 is 86617774.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47771663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16038 + ... + 18781.

Almost surely, 2^47771668 is an apocalyptic number.

It is an amenable number.

47771668 is an abundant number, since it is smaller than the sum of its proper divisors (49724332).

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

47771668 is a wasteful number, since it uses less digits than its factorization.

47771668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34844 (or 34828 counting only the distinct ones).

The product of its digits is 395136, while the sum is 46.

The square root of 47771668 is about 6911.7051441739. The cubic root of 47771668 is about 362.8469429891.

The spelling of 47771668 in words is "forty-seven million, seven hundred seventy-one thousand, six hundred sixty-eight".