47786971 has 4 divisors (see below), whose sum is σ = 47802744. Its totient is φ = 47771200.

The previous prime is 47786969. The next prime is 47786987. The reversal of 47786971 is 17968774.

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 47786971 - 2¹ = 47786969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47786911) 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, 1750 + ... + 9931.

It is an arithmetic number, because the mean of its divisors is an integer number (11950686).

Almost surely, 2^47786971 is an apocalyptic number.

47786971 is a deficient number, since it is larger than the sum of its proper divisors (15773).

47786971 is a wasteful number, since it uses less digits than its factorization.

47786971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15772.

The product of its digits is 592704, while the sum is 49.

The square root of 47786971 is about 6912.8120906039. The cubic root of 47786971 is about 362.8856832034.

The spelling of 47786971 in words is "forty-seven million, seven hundred eighty-six thousand, nine hundred seventy-one".