47171223 has 12 divisors (see below), whose sum is σ = 74330568. Its totient is φ = 28588560.

The previous prime is 47171207. The next prime is 47171231. The reversal of 47171223 is 32217174.

It is a happy number.

It is not a de Polignac number, because 47171223 - 2⁴ = 47171207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47171233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 238140 + ... + 238337.

It is an arithmetic number, because the mean of its divisors is an integer number (6194214).

Almost surely, 2^47171223 is an apocalyptic number.

47171223 is a deficient number, since it is larger than the sum of its proper divisors (27159345).

47171223 is a wasteful number, since it uses less digits than its factorization.

47171223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476494 (or 476491 counting only the distinct ones).

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

The square root of 47171223 is about 6868.1309684659. The cubic root of 47171223 is about 361.3203138157.

Adding to 47171223 its reverse (32217174), we get a palindrome (79388397).

The spelling of 47171223 in words is "forty-seven million, one hundred seventy-one thousand, two hundred twenty-three".