71342856 has 112 divisors (see below), whose sum is σ = 216217260. Its totient is φ = 21928320.

The previous prime is 71342833. The next prime is 71342861. The reversal of 71342856 is 65824317.

It can be written as a sum of positive squares in 2 ways, for example, as 70056900 + 1285956 = 8370^2 + 1134^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 71342856.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 75346 + ... + 76286.

Almost surely, 2^71342856 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 71342856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108108630).

71342856 is an abundant number, since it is smaller than the sum of its proper divisors (144874404).

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

71342856 is a wasteful number, since it uses less digits than its factorization.

71342856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978 (or 959 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 71342856 is about 8446.4700319127. The cubic root of 71342856 is about 414.7472327314.

The spelling of 71342856 in words is "seventy-one million, three hundred forty-two thousand, eight hundred fifty-six".