71228284 has 12 divisors (see below), whose sum is σ = 124714744. Its totient is φ = 35595504.

The previous prime is 71228257. The next prime is 71228291. The reversal of 71228284 is 48282217.

It is a congruent number.

It is an unprimeable number.

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, 7414 + ... + 14050.

Almost surely, 2^71228284 is an apocalyptic number.

It is an amenable number.

71228284 is a deficient number, since it is larger than the sum of its proper divisors (53486460).

71228284 is a wasteful number, since it uses less digits than its factorization.

71228284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9324 (or 9322 counting only the distinct ones).

The product of its digits is 14336, while the sum is 34.

The square root of 71228284 is about 8439.6850652142. The cubic root of 71228284 is about 414.5250947230.

The spelling of 71228284 in words is "seventy-one million, two hundred twenty-eight thousand, two hundred eighty-four".