47660887 has 2 divisors, whose sum is σ = 47660888. Its totient is φ = 47660886.

The previous prime is 47660869. The next prime is 47660909. The reversal of 47660887 is 78806674.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47660887 - 2¹¹ = 47658839 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47660827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23830443 + 23830444.

It is an arithmetic number, because the mean of its divisors is an integer number (23830444).

Almost surely, 2^47660887 is an apocalyptic number.

47660887 is a deficient number, since it is larger than the sum of its proper divisors (1).

47660887 is an equidigital number, since it uses as much as digits as its factorization.

47660887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 451584, while the sum is 46.

The square root of 47660887 is about 6903.6864789763. The cubic root of 47660887 is about 362.5662490096.

The spelling of 47660887 in words is "forty-seven million, six hundred sixty thousand, eight hundred eighty-seven".