71861316 has 12 divisors (see below), whose sum is σ = 167676432. Its totient is φ = 23953768.

The previous prime is 71861303. The next prime is 71861327. The reversal of 71861316 is 61316817.

It is a tau number, because it is divible by the number of its divisors (12).

It is a zygodrome in base 16.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2994210 + ... + 2994233.

It is an arithmetic number, because the mean of its divisors is an integer number (13973036).

Almost surely, 2^71861316 is an apocalyptic number.

It is an amenable number.

71861316 is an abundant number, since it is smaller than the sum of its proper divisors (95815116).

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

71861316 is a wasteful number, since it uses less digits than its factorization.

71861316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5988450 (or 5988448 counting only the distinct ones).

The product of its digits is 6048, while the sum is 33.

The square root of 71861316 is about 8477.1054021995. The cubic root of 71861316 is about 415.7494870549.

The spelling of 71861316 in words is "seventy-one million, eight hundred sixty-one thousand, three hundred sixteen".