47771208 has 40 divisors (see below), whose sum is σ = 133805430. Its totient is φ = 15923520.

The previous prime is 47771203. The next prime is 47771209. The reversal of 47771208 is 80217774.

47771208 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 44595684 + 3175524 = 6678^2 + 1782^2 .

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

It is not an unprimeable number, because it can be changed into a prime (47771203) 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 9 ways as a sum of consecutive naturals, for example, 36213 + ... + 37508.

Almost surely, 2^47771208 is an apocalyptic number.

It is an amenable number.

47771208 is an abundant number, since it is smaller than the sum of its proper divisors (86034222).

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

47771208 is a wasteful number, since it uses less digits than its factorization.

47771208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73739 (or 73726 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 36.

The square root of 47771208 is about 6911.6718672113. The cubic root of 47771208 is about 362.8457783509.

The spelling of 47771208 in words is "forty-seven million, seven hundred seventy-one thousand, two hundred eight".