71560072 has 32 divisors (see below), whose sum is σ = 145917720. Its totient is φ = 32762880.

The previous prime is 71560067. The next prime is 71560091. The reversal of 71560072 is 27006517.

It can be written as a sum of positive squares in 4 ways, for example, as 71132356 + 427716 = 8434^2 + 654^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 71560072.

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, 2079 + ... + 12142.

Almost surely, 2^71560072 is an apocalyptic number.

It is an amenable number.

71560072 is an abundant number, since it is smaller than the sum of its proper divisors (74357648).

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

71560072 is a wasteful number, since it uses less digits than its factorization.

71560072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14281 (or 14277 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 71560072 is about 8459.3186486856. The cubic root of 71560072 is about 415.1677301383.

Adding to 71560072 its reverse (27006517), we get a palindrome (98566589).

The spelling of 71560072 in words is "seventy-one million, five hundred sixty thousand, seventy-two".