47305172 has 6 divisors (see below), whose sum is σ = 82784058. Its totient is φ = 23652584.

The previous prime is 47305151. The next prime is 47305187. The reversal of 47305172 is 27150374.

47305172 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., 47141956 + 163216 = 6866^2 + 404^2 .

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 as a sum of consecutive naturals, namely, 5913143 + ... + 5913150.

It is an arithmetic number, because the mean of its divisors is an integer number (13797343).

Almost surely, 2^47305172 is an apocalyptic number.

It is an amenable number.

47305172 is a deficient number, since it is larger than the sum of its proper divisors (35478886).

47305172 is a wasteful number, since it uses less digits than its factorization.

47305172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11826297 (or 11826295 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 47305172 is about 6877.8755440906. The cubic root of 47305172 is about 361.6619963956.

The spelling of 47305172 in words is "forty-seven million, three hundred five thousand, one hundred seventy-two".