47185875 has 128 divisors (see below), whose sum is σ = 100638720. Its totient is φ = 21600000.

The previous prime is 47185867. The next prime is 47185877. The reversal of 47185875 is 57858174.

It is a happy number.

It is not a de Polignac number, because 47185875 - 2³ = 47185867 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 47185875.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47185877) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1150855 + ... + 1150895.

It is an arithmetic number, because the mean of its divisors is an integer number (786240).

Almost surely, 2^47185875 is an apocalyptic number.

47185875 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

47185875 is an abundant number, since it is smaller than the sum of its proper divisors (53452845).

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

47185875 is a wasteful number, since it uses less digits than its factorization.

47185875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107 (or 91 counting only the distinct ones).

The product of its digits is 313600, while the sum is 45.

The square root of 47185875 is about 6869.1975513884. The cubic root of 47185875 is about 361.3577202177.

The spelling of 47185875 in words is "forty-seven million, one hundred eighty-five thousand, eight hundred seventy-five".