862784668 has 24 divisors (see below), whose sum is σ = 1556927568. Its totient is φ = 418144896.

The previous prime is 862784651. The next prime is 862784669. The reversal of 862784668 is 866487268.

862784668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (862784669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6921 + ... + 42112.

It is an arithmetic number, because the mean of its divisors is an integer number (64871982).

Almost surely, 2^862784668 is an apocalyptic number.

It is an amenable number.

862784668 is a deficient number, since it is larger than the sum of its proper divisors (694142900).

862784668 is a wasteful number, since it uses less digits than its factorization.

862784668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49173 (or 49171 counting only the distinct ones).

The product of its digits is 6193152, while the sum is 55.

The square root of 862784668 is about 29373.1964212273. The cubic root of 862784668 is about 951.9938430857.

The spelling of 862784668 in words is "eight hundred sixty-two million, seven hundred eighty-four thousand, six hundred sixty-eight".