868881684 has 24 divisors (see below), whose sum is σ = 2211699168. Its totient is φ = 263297440.

The previous prime is 868881677. The next prime is 868881707. The reversal of 868881684 is 486188868.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 3291087 + ... + 3291350.

It is an arithmetic number, because the mean of its divisors is an integer number (92154132).

Almost surely, 2^868881684 is an apocalyptic number.

It is an amenable number.

868881684 is an abundant number, since it is smaller than the sum of its proper divisors (1342817484).

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

868881684 is a wasteful number, since it uses less digits than its factorization.

868881684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6582455 (or 6582453 counting only the distinct ones).

The product of its digits is 4718592, while the sum is 57.

The square root of 868881684 is about 29476.7990799544. The cubic root of 868881684 is about 954.2310574302.

The spelling of 868881684 in words is "eight hundred sixty-eight million, eight hundred eighty-one thousand, six hundred eighty-four".