71886822 has 48 divisors (see below), whose sum is σ = 174534912. Its totient is φ = 19644240.

The previous prime is 71886821. The next prime is 71886833. The reversal of 71886822 is 22868817.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71886821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1447 + ... + 12077.

It is an arithmetic number, because the mean of its divisors is an integer number (3636144).

Almost surely, 2^71886822 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71886822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87267456).

71886822 is an abundant number, since it is smaller than the sum of its proper divisors (102648090).

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

71886822 is a wasteful number, since it uses less digits than its factorization.

71886822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10673 (or 10666 counting only the distinct ones).

The product of its digits is 86016, while the sum is 42.

The square root of 71886822 is about 8478.6096737614. The cubic root of 71886822 is about 415.7986690658.

The spelling of 71886822 in words is "seventy-one million, eight hundred eighty-six thousand, eight hundred twenty-two".