47687617 has 2 divisors, whose sum is σ = 47687618. Its totient is φ = 47687616.

The previous prime is 47687597. The next prime is 47687659. The reversal of 47687617 is 71678674.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28686736 + 19000881 = 5356^2 + 4359^2 .

It is a cyclic number.

It is not a de Polignac number, because 47687617 - 2¹¹ = 47685569 is a prime.

It is not a weakly prime, because it can be changed into another prime (47687417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23843808 + 23843809.

It is an arithmetic number, because the mean of its divisors is an integer number (23843809).

Almost surely, 2^47687617 is an apocalyptic number.

It is an amenable number.

47687617 is a deficient number, since it is larger than the sum of its proper divisors (1).

47687617 is an equidigital number, since it uses as much as digits as its factorization.

47687617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 395136, while the sum is 46.

The square root of 47687617 is about 6905.6221298302. The cubic root of 47687617 is about 362.6340165596.

The spelling of 47687617 in words is "forty-seven million, six hundred eighty-seven thousand, six hundred seventeen".