868855384 has 16 divisors (see below), whose sum is σ = 1645900200. Its totient is φ = 429948672.

The previous prime is 868855373. The next prime is 868855411. The reversal of 868855384 is 483558868.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 559054 + ... + 560605.

Almost surely, 2^868855384 is an apocalyptic number.

It is an amenable number.

868855384 is a deficient number, since it is larger than the sum of its proper divisors (777044816).

868855384 is a wasteful number, since it uses less digits than its factorization.

868855384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119762 (or 1119758 counting only the distinct ones).

The product of its digits is 7372800, while the sum is 55.

The square root of 868855384 is about 29476.3529630109. The cubic root of 868855384 is about 954.2214295256.

The spelling of 868855384 in words is "eight hundred sixty-eight million, eight hundred fifty-five thousand, three hundred eighty-four".