86227728 has 40 divisors (see below), whose sum is σ = 227940768. Its totient is φ = 28073472.

The previous prime is 86227721. The next prime is 86227747. The reversal of 86227728 is 82772268.

It is a self number, because there is not a number n which added to its sum of digits gives 86227728.

It is not an unprimeable number, because it can be changed into a prime (86227721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18825 + ... + 22952.

Almost surely, 2^86227728 is an apocalyptic number.

It is an amenable number.

86227728 is an abundant number, since it is smaller than the sum of its proper divisors (141713040).

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

86227728 is a wasteful number, since it uses less digits than its factorization.

86227728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41831 (or 41825 counting only the distinct ones).

The product of its digits is 150528, while the sum is 42.

The square root of 86227728 is about 9285.8886489124. Note that the first 3 decimals coincide. The cubic root of 86227728 is about 441.7897623586.

The spelling of 86227728 in words is "eighty-six million, two hundred twenty-seven thousand, seven hundred twenty-eight".