71108772 has 48 divisors (see below), whose sum is σ = 192310272. Its totient is φ = 20028960.

The previous prime is 71108749. The next prime is 71108777. The reversal of 71108772 is 27780117.

It is not an unprimeable number, because it can be changed into a prime (71108777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3 + ... + 11925.

It is an arithmetic number, because the mean of its divisors is an integer number (4006464).

Almost surely, 2^71108772 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 71108772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96155136).

71108772 is an abundant number, since it is smaller than the sum of its proper divisors (121201500).

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

71108772 is a wasteful number, since it uses less digits than its factorization.

71108772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12008 (or 12006 counting only the distinct ones).

The product of its (nonzero) digits is 5488, while the sum is 33.

The square root of 71108772 is about 8432.6017337474. The cubic root of 71108772 is about 414.2931248094.

Adding to 71108772 its reverse (27780117), we get a palindrome (98888889).

The spelling of 71108772 in words is "seventy-one million, one hundred eight thousand, seven hundred seventy-two".