71047760 has 120 divisors (see below), whose sum is σ = 200999040. Its totient is φ = 22874112.

The previous prime is 71047727. The next prime is 71047771. The reversal of 71047760 is 6774017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 161621 + ... + 162059.

It is an arithmetic number, because the mean of its divisors is an integer number (1674992).

Almost surely, 2^71047760 is an apocalyptic number.

71047760 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71047760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100499520).

71047760 is an abundant number, since it is smaller than the sum of its proper divisors (129951280).

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

71047760 is a wasteful number, since it uses less digits than its factorization.

71047760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493 (or 470 counting only the distinct ones).

The product of its (nonzero) digits is 8232, while the sum is 32.

The square root of 71047760 is about 8428.9833313396. The cubic root of 71047760 is about 414.1746017631.

The spelling of 71047760 in words is "seventy-one million, forty-seven thousand, seven hundred sixty".