47475890 has 32 divisors (see below), whose sum is σ = 106545024. Its totient is φ = 14797440.

The previous prime is 47475839. The next prime is 47475899. The reversal of 47475890 is 9857474.

47475890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (47475899) 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 15 ways as a sum of consecutive naturals, for example, 30059 + ... + 31598.

It is an arithmetic number, because the mean of its divisors is an integer number (3329532).

Almost surely, 2^47475890 is an apocalyptic number.

47475890 is an abundant number, since it is smaller than the sum of its proper divisors (59069134).

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

47475890 is a wasteful number, since it uses less digits than its factorization.

47475890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61682.

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 47475890 is about 6890.2750307952. The cubic root of 47475890 is about 362.0965372399.

The spelling of 47475890 in words is "forty-seven million, four hundred seventy-five thousand, eight hundred ninety".