868513003 has 4 divisors (see below), whose sum is σ = 868734720. Its totient is φ = 868291288.

The previous prime is 868513001. The next prime is 868513031. The reversal of 868513003 is 300315868.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 868513003 - 2¹ = 868513001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 868513003.

It is not an unprimeable number, because it can be changed into a prime (868513001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104875 + ... + 112852.

It is an arithmetic number, because the mean of its divisors is an integer number (217183680).

Almost surely, 2^868513003 is an apocalyptic number.

868513003 is a deficient number, since it is larger than the sum of its proper divisors (221717).

868513003 is a wasteful number, since it uses less digits than its factorization.

868513003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221716.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 868513003 is about 29470.5446675151. The cubic root of 868513003 is about 954.0960729485.

The spelling of 868513003 in words is "eight hundred sixty-eight million, five hundred thirteen thousand, three".