71027289 has 12 divisors (see below), whose sum is σ = 107055936. Its totient is φ = 45292632.

The previous prime is 71027273. The next prime is 71027291. The reversal of 71027289 is 98272017.

It is not a de Polignac number, because 71027289 - 2⁴ = 71027273 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71027249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 171357 + ... + 171770.

It is an arithmetic number, because the mean of its divisors is an integer number (8921328).

Almost surely, 2^71027289 is an apocalyptic number.

It is an amenable number.

71027289 is a deficient number, since it is larger than the sum of its proper divisors (36028647).

71027289 is a wasteful number, since it uses less digits than its factorization.

71027289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343156 (or 343153 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 71027289 is about 8427.7689218440. The cubic root of 71027289 is about 414.1348192153.

The spelling of 71027289 in words is "seventy-one million, twenty-seven thousand, two hundred eighty-nine".