47909475 has 60 divisors (see below), whose sum is σ = 90474120. Its totient is φ = 25056000.

The previous prime is 47909473. The next prime is 47909503. The reversal of 47909475 is 57490974.

47909475 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47909475 - 2¹ = 47909473 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 47909475.

It is not an unprimeable number, because it can be changed into a prime (47909473) 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 59 ways as a sum of consecutive naturals, for example, 119275 + ... + 119675.

It is an arithmetic number, because the mean of its divisors is an integer number (1507902).

Almost surely, 2^47909475 is an apocalyptic number.

47909475 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

47909475 is a deficient number, since it is larger than the sum of its proper divisors (42564645).

47909475 is a wasteful number, since it uses less digits than its factorization.

47909475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482 (or 468 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 47909475 is about 6921.6670679830. The cubic root of 47909475 is about 363.1955097343.

It can be divided in two parts, 47909 and 475, that added together give a palindrome (48384).

The spelling of 47909475 in words is "forty-seven million, nine hundred nine thousand, four hundred seventy-five".