47171323 has 4 divisors (see below), whose sum is σ = 47415928. Its totient is φ = 46926720.

The previous prime is 47171317. The next prime is 47171339. The reversal of 47171323 is 32317174.

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 47171323 - 2⁹ = 47170811 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47171291 and 47171300.

It is not an unprimeable number, because it can be changed into a prime (47171303) 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, 122013 + ... + 122398.

It is an arithmetic number, because the mean of its divisors is an integer number (11853982).

Almost surely, 2^47171323 is an apocalyptic number.

47171323 is a deficient number, since it is larger than the sum of its proper divisors (244605).

47171323 is a wasteful number, since it uses less digits than its factorization.

47171323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244604.

The product of its digits is 3528, while the sum is 28.

The square root of 47171323 is about 6868.1382484630. The cubic root of 47171323 is about 361.3205691409.

Adding to 47171323 its reverse (32317174), we get a palindrome (79488497).

The spelling of 47171323 in words is "forty-seven million, one hundred seventy-one thousand, three hundred twenty-three".