47217315 has 16 divisors (see below), whose sum is σ = 75639456. Its totient is φ = 25152000.

The previous prime is 47217293. The next prime is 47217341. The reversal of 47217315 is 51371274.

47217315 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 47217315 - 2⁶ = 47217251 is a prime.

It is an unprimeable number.

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, 16705 + ... + 19325.

It is an arithmetic number, because the mean of its divisors is an integer number (4727466).

Almost surely, 2^47217315 is an apocalyptic number.

47217315 is a deficient number, since it is larger than the sum of its proper divisors (28422141).

47217315 is a wasteful number, since it uses less digits than its factorization.

47217315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3830.

The product of its digits is 5880, while the sum is 30.

The square root of 47217315 is about 6871.4856472236. The cubic root of 47217315 is about 361.4379600801.

Adding to 47217315 its reverse (51371274), we get a palindrome (98588589).

The spelling of 47217315 in words is "forty-seven million, two hundred seventeen thousand, three hundred fifteen".