868283821 has 8 divisors (see below), whose sum is σ = 903044384. Its totient is φ = 834185520.

The previous prime is 868283803. The next prime is 868283837. The reversal of 868283821 is 128382868.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 868283821 - 2¹¹ = 868281773 is a prime.

It is a super-3 number, since 3×868283821³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868283881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162891 + ... + 168136.

It is an arithmetic number, because the mean of its divisors is an integer number (112880548).

Almost surely, 2^868283821 is an apocalyptic number.

It is an amenable number.

868283821 is a deficient number, since it is larger than the sum of its proper divisors (34760563).

868283821 is a wasteful number, since it uses less digits than its factorization.

868283821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331131.

The product of its digits is 294912, while the sum is 46.

The square root of 868283821 is about 29466.6560878563. The cubic root of 868283821 is about 954.0121437187.

The spelling of 868283821 in words is "eight hundred sixty-eight million, two hundred eighty-three thousand, eight hundred twenty-one".