71169852 has 48 divisors (see below), whose sum is σ = 180647712. Its totient is φ = 21676800.

The previous prime is 71169851. The next prime is 71169869. The reversal of 71169852 is 25896117.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 71169852.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71169851) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 13498 + ... + 18014.

It is an arithmetic number, because the mean of its divisors is an integer number (3763494).

Almost surely, 2^71169852 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71169852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90323856).

71169852 is an abundant number, since it is smaller than the sum of its proper divisors (109477860).

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

71169852 is a wasteful number, since it uses less digits than its factorization.

71169852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4638 (or 4636 counting only the distinct ones).

The product of its digits is 30240, while the sum is 39.

The square root of 71169852 is about 8436.2226144170. Note that the first 3 decimals coincide. The cubic root of 71169852 is about 414.4117120639.

The spelling of 71169852 in words is "seventy-one million, one hundred sixty-nine thousand, eight hundred fifty-two".