47213271 has 24 divisors (see below), whose sum is σ = 82043520. Its totient is φ = 25558416.

The previous prime is 47213251. The next prime is 47213281. The reversal of 47213271 is 17231274.

It is a happy number.

It is not a de Polignac number, because 47213271 - 2⁷ = 47213143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47213251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18525 + ... + 20918.

It is an arithmetic number, because the mean of its divisors is an integer number (3418480).

Almost surely, 2^47213271 is an apocalyptic number.

47213271 is a deficient number, since it is larger than the sum of its proper divisors (34830249).

47213271 is a wasteful number, since it uses less digits than its factorization.

47213271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39475 (or 39472 counting only the distinct ones).

The product of its digits is 2352, while the sum is 27.

The square root of 47213271 is about 6871.1913814127. The cubic root of 47213271 is about 361.4276411478.

The spelling of 47213271 in words is "forty-seven million, two hundred thirteen thousand, two hundred seventy-one".