47164771 has 2 divisors, whose sum is σ = 47164772. Its totient is φ = 47164770.

The previous prime is 47164769. The next prime is 47164781. The reversal of 47164771 is 17746174.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47164771 - 2¹ = 47164769 is a prime.

Together with 47164769, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 47164771.

It is not a weakly prime, because it can be changed into another prime (47164781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23582385 + 23582386.

It is an arithmetic number, because the mean of its divisors is an integer number (23582386).

Almost surely, 2^47164771 is an apocalyptic number.

47164771 is a deficient number, since it is larger than the sum of its proper divisors (1).

47164771 is an equidigital number, since it uses as much as digits as its factorization.

47164771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32928, while the sum is 37.

The square root of 47164771 is about 6867.6612467419. The cubic root of 47164771 is about 361.3038394710.

The spelling of 47164771 in words is "forty-seven million, one hundred sixty-four thousand, seven hundred seventy-one".