71716536 has 96 divisors (see below), whose sum is σ = 208026000. Its totient is φ = 22865472.

The previous prime is 71716499. The next prime is 71716543. The reversal of 71716536 is 63561717.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 71716536.

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, 670195 + ... + 670301.

Almost surely, 2^71716536 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 71716536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104013000).

71716536 is an abundant number, since it is smaller than the sum of its proper divisors (136309464).

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

71716536 is a wasteful number, since it uses less digits than its factorization.

71716536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258 (or 141 counting only the distinct ones).

The product of its digits is 26460, while the sum is 36.

The square root of 71716536 is about 8468.5616252112. The cubic root of 71716536 is about 415.4700938999.

The spelling of 71716536 in words is "seventy-one million, seven hundred sixteen thousand, five hundred thirty-six".