868763506 has 16 divisors (see below), whose sum is σ = 1404144000. Its totient is φ = 400751568.

The previous prime is 868763503. The next prime is 868763507. The reversal of 868763506 is 605367868.

It is a happy number.

868763506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 868763506.

It is not an unprimeable number, because it can be changed into a prime (868763503) 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, 46615 + ... + 62533.

It is an arithmetic number, because the mean of its divisors is an integer number (87759000).

Almost surely, 2^868763506 is an apocalyptic number.

868763506 is a deficient number, since it is larger than the sum of its proper divisors (535380494).

868763506 is a wasteful number, since it uses less digits than its factorization.

868763506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18033.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The square root of 868763506 is about 29474.7944182822. The cubic root of 868763506 is about 954.1877933000.

The spelling of 868763506 in words is "eight hundred sixty-eight million, seven hundred sixty-three thousand, five hundred six".