47660663 has 4 divisors (see below), whose sum is σ = 47860320. Its totient is φ = 47461008.

The previous prime is 47660629. The next prime is 47660677. The reversal of 47660663 is 36606674.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47660663 - 2¹⁶ = 47595127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47660603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99470 + ... + 99947.

It is an arithmetic number, because the mean of its divisors is an integer number (11965080).

Almost surely, 2^47660663 is an apocalyptic number.

47660663 is a deficient number, since it is larger than the sum of its proper divisors (199657).

47660663 is a wasteful number, since it uses less digits than its factorization.

47660663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199656.

The product of its (nonzero) digits is 108864, while the sum is 38.

The square root of 47660663 is about 6903.6702557408. The cubic root of 47660663 is about 362.5656810039.

It can be divided in two parts, 4 and 7660663, that added together give a palindrome (7660667).

The spelling of 47660663 in words is "forty-seven million, six hundred sixty thousand, six hundred sixty-three".