71827228 has 12 divisors (see below), whose sum is σ = 137124792. Its totient is φ = 32648720.

The previous prime is 71827219. The next prime is 71827237. The reversal of 71827228 is 82272817.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (71827219) and next prime (71827237).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 816175 + ... + 816262.

It is an arithmetic number, because the mean of its divisors is an integer number (11427066).

Almost surely, 2^71827228 is an apocalyptic number.

It is an amenable number.

71827228 is a deficient number, since it is larger than the sum of its proper divisors (65297564).

71827228 is a wasteful number, since it uses less digits than its factorization.

71827228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632452 (or 1632450 counting only the distinct ones).

The product of its digits is 25088, while the sum is 37.

The square root of 71827228 is about 8475.0945717437. The cubic root of 71827228 is about 415.6837386069.

The spelling of 71827228 in words is "seventy-one million, eight hundred twenty-seven thousand, two hundred twenty-eight".