71331760 has 20 divisors (see below), whose sum is σ = 165846528. Its totient is φ = 28532672.

The previous prime is 71331739. The next prime is 71331773. The reversal of 71331760 is 6713317.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 445744 + ... + 445903.

Almost surely, 2^71331760 is an apocalyptic number.

It is an amenable number.

71331760 is an abundant number, since it is smaller than the sum of its proper divisors (94514768).

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

71331760 is a wasteful number, since it uses less digits than its factorization.

71331760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891660 (or 891654 counting only the distinct ones).

The product of its (nonzero) digits is 2646, while the sum is 28.

The square root of 71331760 is about 8445.8131639292. The cubic root of 71331760 is about 414.7257296491.

The spelling of 71331760 in words is "seventy-one million, three hundred thirty-one thousand, seven hundred sixty".