47715643 has 4 divisors (see below), whose sum is σ = 49361040. Its totient is φ = 46070248.

The previous prime is 47715641. The next prime is 47715667. The reversal of 47715643 is 34651774.

47715643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 47715643 - 2¹ = 47715641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47715641) 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 3 ways as a sum of consecutive naturals, for example, 822655 + ... + 822712.

It is an arithmetic number, because the mean of its divisors is an integer number (12340260).

Almost surely, 2^47715643 is an apocalyptic number.

47715643 is a deficient number, since it is larger than the sum of its proper divisors (1645397).

47715643 is a wasteful number, since it uses less digits than its factorization.

47715643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645396.

The product of its digits is 70560, while the sum is 37.

The square root of 47715643 is about 6907.6510479323. The cubic root of 47715643 is about 362.7050426196.

The spelling of 47715643 in words is "forty-seven million, seven hundred fifteen thousand, six hundred forty-three".