47171322 has 80 divisors (see below), whose sum is σ = 116880192. Its totient is φ = 14100480.

The previous prime is 47171317. The next prime is 47171339. The reversal of 47171322 is 22317174.

It is a happy number.

It is a super-3 number, since 3×47171322³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 183418 + ... + 183674.

Almost surely, 2^47171322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47171322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58440096).

47171322 is an abundant number, since it is smaller than the sum of its proper divisors (69708870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47171322 is a wasteful number, since it uses less digits than its factorization.

47171322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385 (or 376 counting only the distinct ones).

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

The square root of 47171322 is about 6868.1381756630. The cubic root of 47171322 is about 361.3205665876.

Adding to 47171322 its reverse (22317174), we get a palindrome (69488496).

The spelling of 47171322 in words is "forty-seven million, one hundred seventy-one thousand, three hundred twenty-two".