82228768 has 12 divisors (see below), whose sum is σ = 161887950. Its totient is φ = 41114368.

The previous prime is 82228759. The next prime is 82228781. The reversal of 82228768 is 86782228.

It can be written as a sum of positive squares in only one way, i.e., 82228624 + 144 = 9068^2 + 12^2 .

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1284793 + ... + 1284856.

Almost surely, 2^82228768 is an apocalyptic number.

It is an amenable number.

82228768 is a deficient number, since it is larger than the sum of its proper divisors (79659182).

82228768 is a wasteful number, since it uses less digits than its factorization.

82228768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2569659 (or 2569651 counting only the distinct ones).

The product of its digits is 172032, while the sum is 43.

The square root of 82228768 is about 9068.0079400053. The cubic root of 82228768 is about 434.8517890289.

The spelling of 82228768 in words is "eighty-two million, two hundred twenty-eight thousand, seven hundred sixty-eight".