47317865 has 16 divisors (see below), whose sum is σ = 65059200. Its totient is φ = 32363520.

The previous prime is 47317859. The next prime is 47317889. The reversal of 47317865 is 56871374.

It is not a de Polignac number, because 47317865 - 2⁴ = 47317849 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14210 + ... + 17220.

It is an arithmetic number, because the mean of its divisors is an integer number (4066200).

Almost surely, 2^47317865 is an apocalyptic number.

It is an amenable number.

47317865 is a deficient number, since it is larger than the sum of its proper divisors (17741335).

47317865 is a wasteful number, since it uses less digits than its factorization.

47317865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3472.

The product of its digits is 141120, while the sum is 41.

The square root of 47317865 is about 6878.7982235271. The cubic root of 47317865 is about 361.6943407461.

The spelling of 47317865 in words is "forty-seven million, three hundred seventeen thousand, eight hundred sixty-five".