868213916 has 12 divisors (see below), whose sum is σ = 1527010800. Its totient is φ = 431925120.

The previous prime is 868213901. The next prime is 868213933. The reversal of 868213916 is 619312868.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 544565 + ... + 546156.

It is an arithmetic number, because the mean of its divisors is an integer number (127250900).

Almost surely, 2^868213916 is an apocalyptic number.

It is an amenable number.

868213916 is a deficient number, since it is larger than the sum of its proper divisors (658796884).

868213916 is a wasteful number, since it uses less digits than its factorization.

868213916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090924 (or 1090922 counting only the distinct ones).

The product of its digits is 124416, while the sum is 44.

The square root of 868213916 is about 29465.4698927406. The cubic root of 868213916 is about 953.9865407199.

The spelling of 868213916 in words is "eight hundred sixty-eight million, two hundred thirteen thousand, nine hundred sixteen".