864228208 has 20 divisors (see below), whose sum is σ = 1675051768. Its totient is φ = 431956800.

The previous prime is 864228179. The next prime is 864228221. The reversal of 864228208 is 802822468.

It is a congruent number.

It is an unprimeable number.

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, 44635 + ... + 60997.

Almost surely, 2^864228208 is an apocalyptic number.

It is an amenable number.

864228208 is a deficient number, since it is larger than the sum of its proper divisors (810823560).

864228208 is a wasteful number, since it uses less digits than its factorization.

864228208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19672 (or 19666 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 40.

The square root of 864228208 is about 29397.7585540122. The cubic root of 864228208 is about 952.5244797294.

The spelling of 864228208 in words is "eight hundred sixty-four million, two hundred twenty-eight thousand, two hundred eight".