47748890 has 32 divisors (see below), whose sum is σ = 99702144. Its totient is φ = 16125120.

The previous prime is 47748871. The next prime is 47748893. The reversal of 47748890 is 9884774.

47748890 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 (47748893) 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, 401 + ... + 9780.

It is an arithmetic number, because the mean of its divisors is an integer number (3115692).

Almost surely, 2^47748890 is an apocalyptic number.

47748890 is an abundant number, since it is smaller than the sum of its proper divisors (51953254).

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

47748890 is a wasteful number, since it uses less digits than its factorization.

47748890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10262.

The product of its (nonzero) digits is 451584, while the sum is 47.

The square root of 47748890 is about 6910.0571632947. The cubic root of 47748890 is about 362.7892641600.

The spelling of 47748890 in words is "forty-seven million, seven hundred forty-eight thousand, eight hundred ninety".