868861003 has 4 divisors (see below), whose sum is σ = 883104688. Its totient is φ = 854617320.

The previous prime is 868861001. The next prime is 868861027. The reversal of 868861003 is 300168868.

868861003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 868861003 - 2¹ = 868861001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (868861001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7121751 + ... + 7121872.

It is an arithmetic number, because the mean of its divisors is an integer number (220776172).

Almost surely, 2^868861003 is an apocalyptic number.

868861003 is a deficient number, since it is larger than the sum of its proper divisors (14243685).

868861003 is a wasteful number, since it uses less digits than its factorization.

868861003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14243684.

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 868861003 is about 29476.4482765478. The cubic root of 868861003 is about 954.2234865456.

The spelling of 868861003 in words is "eight hundred sixty-eight million, eight hundred sixty-one thousand, three".