71797536 has 96 divisors (see below), whose sum is σ = 218574720. Its totient is φ = 22885632.

The previous prime is 71797507. The next prime is 71797547. The reversal of 71797536 is 63579717.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 71797491 and 71797500.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18066 + ... + 21678.

It is an arithmetic number, because the mean of its divisors is an integer number (2276820).

Almost surely, 2^71797536 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 71797536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109287360).

71797536 is an abundant number, since it is smaller than the sum of its proper divisors (146777184).

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

71797536 is a wasteful number, since it uses less digits than its factorization.

71797536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3655 (or 3641 counting only the distinct ones).

The product of its digits is 277830, while the sum is 45.

The square root of 71797536 is about 8473.3426698087. The cubic root of 71797536 is about 415.6264521479.

The spelling of 71797536 in words is "seventy-one million, seven hundred ninety-seven thousand, five hundred thirty-six".