863802468 has 120 divisors (see below), whose sum is σ = 2355507000. Its totient is φ = 275692032.

The previous prime is 863802463. The next prime is 863802509. The reversal of 863802468 is 864208368.

It is a happy number.

863802468 is a `hidden beast` number, since 8 + 638 + 0 + 2 + 4 + 6 + 8 = 666.

863802468 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 12446784 + 851355684 = 3528^2 + 29178^2 .

It is not an unprimeable number, because it can be changed into a prime (863802461) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1399696 + ... + 1400312.

It is an arithmetic number, because the mean of its divisors is an integer number (19629225).

Almost surely, 2^863802468 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 863802468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1177753500).

863802468 is an abundant number, since it is smaller than the sum of its proper divisors (1491704532).

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

863802468 is a wasteful number, since it uses less digits than its factorization.

863802468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811 (or 800 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The square root of 863802468 is about 29390.5166337715. The cubic root of 863802468 is about 952.3680417356.

The spelling of 863802468 in words is "eight hundred sixty-three million, eight hundred two thousand, four hundred sixty-eight".