47687005 has 4 divisors (see below), whose sum is σ = 57224412. Its totient is φ = 38149600.

The previous prime is 47686997. The next prime is 47687009. The reversal of 47687005 is 50078674.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 34539129 + 13147876 = 5877^2 + 3626^2 .

It is not a de Polignac number, because 47687005 - 2³ = 47686997 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 (47687009) 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, 4768696 + ... + 4768705.

It is an arithmetic number, because the mean of its divisors is an integer number (14306103).

Almost surely, 2^47687005 is an apocalyptic number.

It is an amenable number.

47687005 is a deficient number, since it is larger than the sum of its proper divisors (9537407).

47687005 is an equidigital number, since it uses as much as digits as its factorization.

47687005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9537406.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 47687005 is about 6905.5778179672. The cubic root of 47687005 is about 362.6324652627.

The spelling of 47687005 in words is "forty-seven million, six hundred eighty-seven thousand, five".