47338291 has 48 divisors (see below), whose sum is σ = 67592448. Its totient is φ = 32011200.

The previous prime is 47338289. The next prime is 47338309. The reversal of 47338291 is 19283374.

47338291 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 47338291 - 2¹ = 47338289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47338291.

It is not an unprimeable number, because it can be changed into a prime (47338261) 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 47 ways as a sum of consecutive naturals, for example, 361296 + ... + 361426.

It is an arithmetic number, because the mean of its divisors is an integer number (1408176).

Almost surely, 2^47338291 is an apocalyptic number.

47338291 is a deficient number, since it is larger than the sum of its proper divisors (20254157).

47338291 is a wasteful number, since it uses less digits than its factorization.

47338291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200 (or 181 counting only the distinct ones).

The product of its digits is 36288, while the sum is 37.

The square root of 47338291 is about 6880.2827703518. The cubic root of 47338291 is about 361.7463782151.

The spelling of 47338291 in words is "forty-seven million, three hundred thirty-eight thousand, two hundred ninety-one".