47705771 has 4 divisors (see below), whose sum is σ = 47878272. Its totient is φ = 47533272.

The previous prime is 47705761. The next prime is 47705797. The reversal of 47705771 is 17750774.

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 47705771 - 2¹⁰ = 47704747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47705701) 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, 85835 + ... + 86388.

It is an arithmetic number, because the mean of its divisors is an integer number (11969568).

Almost surely, 2^47705771 is an apocalyptic number.

47705771 is a deficient number, since it is larger than the sum of its proper divisors (172501).

47705771 is a wasteful number, since it uses less digits than its factorization.

47705771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172500.

The product of its (nonzero) digits is 48020, while the sum is 38.

The square root of 47705771 is about 6906.9364409990. The cubic root of 47705771 is about 362.6800272653.

The spelling of 47705771 in words is "forty-seven million, seven hundred five thousand, seven hundred seventy-one".