82228784 has 20 divisors (see below), whose sum is σ = 173802120. Its totient is φ = 37376640.

The previous prime is 82228781. The next prime is 82228787. The reversal of 82228784 is 48782228.

It is an interprime number because it is at equal distance from previous prime (82228781) and next prime (82228787).

It is not an unprimeable number, because it can be changed into a prime (82228781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233429 + ... + 233780.

It is an arithmetic number, because the mean of its divisors is an integer number (8690106).

Almost surely, 2^82228784 is an apocalyptic number.

It is an amenable number.

82228784 is an abundant number, since it is smaller than the sum of its proper divisors (91573336).

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

82228784 is a wasteful number, since it uses less digits than its factorization.

82228784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467228 (or 467222 counting only the distinct ones).

The product of its digits is 114688, while the sum is 41.

The square root of 82228784 is about 9068.0088222277. The cubic root of 82228784 is about 434.8518172333.

The spelling of 82228784 in words is "eighty-two million, two hundred twenty-eight thousand, seven hundred eighty-four".