71520848 has 40 divisors (see below), whose sum is σ = 159454080. Its totient is φ = 30441600.

The previous prime is 71520829. The next prime is 71520859. The reversal of 71520848 is 84802517.

It is a Cunningham number, because it is equal to 8457²-1.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14798 + ... + 19026.

It is an arithmetic number, because the mean of its divisors is an integer number (3986352).

Almost surely, 2^71520848 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 71520848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79727040).

71520848 is an abundant number, since it is smaller than the sum of its proper divisors (87933232).

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

71520848 is a wasteful number, since it uses less digits than its factorization.

71520848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4395 (or 4389 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 71520848 is about 8456.9999408774. Note that the first 4 decimals coincide. The cubic root of 71520848 is about 415.0918614086.

The spelling of 71520848 in words is "seventy-one million, five hundred twenty thousand, eight hundred forty-eight".