71070560 has 72 divisors (see below), whose sum is σ = 184606128. Its totient is φ = 25836800.

The previous prime is 71070553. The next prime is 71070581. The reversal of 71070560 is 6507017.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17525 + ... + 21195.

It is an arithmetic number, because the mean of its divisors is an integer number (2563974).

Almost surely, 2^71070560 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 71070560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92303064).

71070560 is an abundant number, since it is smaller than the sum of its proper divisors (113535568).

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

71070560 is a wasteful number, since it uses less digits than its factorization.

71070560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3708 (or 3689 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 71070560 is about 8430.3356991285. The cubic root of 71070560 is about 414.2189014049.

Adding to 71070560 its reverse (6507017), we get a palindrome (77577577).

The spelling of 71070560 in words is "seventy-one million, seventy thousand, five hundred sixty".