47000172 has 24 divisors (see below), whose sum is σ = 116118576. Its totient is φ = 14745088.

The previous prime is 47000171. The next prime is 47000183. The reversal of 47000172 is 27100074.

47000172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (47000171) 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 7 ways as a sum of consecutive naturals, for example, 114993 + ... + 115400.

It is an arithmetic number, because the mean of its divisors is an integer number (4838274).

Almost surely, 2^47000172 is an apocalyptic number.

It is an amenable number.

47000172 is an abundant number, since it is smaller than the sum of its proper divisors (69118404).

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

47000172 is a wasteful number, since it uses less digits than its factorization.

47000172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230417 (or 230415 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 47000172 is about 6855.6671447788. The cubic root of 47000172 is about 360.8830482389.

The spelling of 47000172 in words is "forty-seven million, one hundred seventy-two", and thus it is an aban number.