47927771 has 2 divisors, whose sum is σ = 47927772. Its totient is φ = 47927770.

The previous prime is 47927723. The next prime is 47927773. The reversal of 47927771 is 17772974.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47927771 is a prime.

Together with 47927773, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47927773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23963885 + 23963886.

It is an arithmetic number, because the mean of its divisors is an integer number (23963886).

Almost surely, 2^47927771 is an apocalyptic number.

47927771 is a deficient number, since it is larger than the sum of its proper divisors (1).

47927771 is an equidigital number, since it uses as much as digits as its factorization.

47927771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172872, while the sum is 44.

The square root of 47927771 is about 6922.9885887527. The cubic root of 47927771 is about 363.2417370504.

The spelling of 47927771 in words is "forty-seven million, nine hundred twenty-seven thousand, seven hundred seventy-one".