71171448 has 16 divisors (see below), whose sum is σ = 177928680. Its totient is φ = 23723808.

The previous prime is 71171447. The next prime is 71171459. The reversal of 71171448 is 84417117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71171447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1482715 + ... + 1482762.

Almost surely, 2^71171448 is an apocalyptic number.

It is an amenable number.

71171448 is an abundant number, since it is smaller than the sum of its proper divisors (106757232).

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

71171448 is a wasteful number, since it uses less digits than its factorization.

71171448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2965486 (or 2965482 counting only the distinct ones).

The product of its digits is 6272, while the sum is 33.

The square root of 71171448 is about 8436.3172059851. The cubic root of 71171448 is about 414.4148097995.

The spelling of 71171448 in words is "seventy-one million, one hundred seventy-one thousand, four hundred forty-eight".