47081487 has 8 divisors (see below), whose sum is σ = 66079360. Its totient is φ = 29735640.

The previous prime is 47081477. The next prime is 47081491. The reversal of 47081487 is 78418074.

47081487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 47081487 - 2²⁰ = 46032911 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 (47081477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 412939 + ... + 413052.

It is an arithmetic number, because the mean of its divisors is an integer number (8259920).

Almost surely, 2^47081487 is an apocalyptic number.

47081487 is a deficient number, since it is larger than the sum of its proper divisors (18997873).

47081487 is a wasteful number, since it uses less digits than its factorization.

47081487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826013.

The product of its (nonzero) digits is 50176, while the sum is 39.

The square root of 47081487 is about 6861.5950769482. The cubic root of 47081487 is about 361.0910495907.

The spelling of 47081487 in words is "forty-seven million, eighty-one thousand, four hundred eighty-seven".