868940503 has 4 divisors (see below), whose sum is σ = 870947728. Its totient is φ = 866933280.

The previous prime is 868940491. The next prime is 868940519. The reversal of 868940503 is 305049868.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-868940503 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 868940503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868940563) 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, 1002963 + ... + 1003828.

It is an arithmetic number, because the mean of its divisors is an integer number (217736932).

Almost surely, 2^868940503 is an apocalyptic number.

868940503 is a deficient number, since it is larger than the sum of its proper divisors (2007225).

868940503 is a wasteful number, since it uses less digits than its factorization.

868940503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2007224.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 868940503 is about 29477.7967799495. The cubic root of 868940503 is about 954.2525891881.

The spelling of 868940503 in words is "eight hundred sixty-eight million, nine hundred forty thousand, five hundred three".