47656865 has 8 divisors (see below), whose sum is σ = 60552360. Its totient is φ = 35882752.

The previous prime is 47656849. The next prime is 47656867. The reversal of 47656865 is 56865674.

It can be written as a sum of positive squares in 4 ways, for example, as 2927521 + 44729344 = 1711^2 + 6688^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47656865 - 2⁴ = 47656849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47656867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 280250 + ... + 280419.

It is an arithmetic number, because the mean of its divisors is an integer number (7569045).

Almost surely, 2^47656865 is an apocalyptic number.

It is an amenable number.

47656865 is a deficient number, since it is larger than the sum of its proper divisors (12895495).

47656865 is a wasteful number, since it uses less digits than its factorization.

47656865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560691.

The product of its digits is 1209600, while the sum is 47.

The square root of 47656865 is about 6903.3951791854. The cubic root of 47656865 is about 362.5560499934.

The spelling of 47656865 in words is "forty-seven million, six hundred fifty-six thousand, eight hundred sixty-five".