71889316 has 6 divisors (see below), whose sum is σ = 125806310. Its totient is φ = 35944656.

The previous prime is 71889313. The next prime is 71889343. The reversal of 71889316 is 61398817.

It can be written as a sum of positive squares in only one way, i.e., 39740416 + 32148900 = 6304^2 + 5670^2 .

It is not an unprimeable number, because it can be changed into a prime (71889313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8986161 + ... + 8986168.

Almost surely, 2^71889316 is an apocalyptic number.

It is an amenable number.

71889316 is a deficient number, since it is larger than the sum of its proper divisors (53916994).

71889316 is a wasteful number, since it uses less digits than its factorization.

71889316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17972333 (or 17972331 counting only the distinct ones).

The product of its digits is 72576, while the sum is 43.

The square root of 71889316 is about 8478.7567484862. The cubic root of 71889316 is about 415.8034775034.

The spelling of 71889316 in words is "seventy-one million, eight hundred eighty-nine thousand, three hundred sixteen".