71712196 has 6 divisors (see below), whose sum is σ = 125496350. Its totient is φ = 35856096.

The previous prime is 71712181. The next prime is 71712203. The reversal of 71712196 is 69121717.

It can be written as a sum of positive squares in only one way, i.e., 71639296 + 72900 = 8464^2 + 270^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8964021 + ... + 8964028.

Almost surely, 2^71712196 is an apocalyptic number.

It is an amenable number.

71712196 is a deficient number, since it is larger than the sum of its proper divisors (53784154).

71712196 is a wasteful number, since it uses less digits than its factorization.

71712196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17928053 (or 17928051 counting only the distinct ones).

The product of its digits is 5292, while the sum is 34.

The square root of 71712196 is about 8468.3053794723. The cubic root of 71712196 is about 415.4617128640.

The spelling of 71712196 in words is "seventy-one million, seven hundred twelve thousand, one hundred ninety-six".