999998000003 has 4 divisors (see below), whose sum is σ = 1000016796408. Its totient is φ = 999979203600.

The previous prime is 999997999981. The next prime is 999998000009. The reversal of 999998000003 is 300000899999.

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 999998000003 - 2⁸ = 999997999747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (999998000009) 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, 9318173 + ... + 9424878.

It is an arithmetic number, because the mean of its divisors is an integer number (250004199102).

Almost surely, 2^999998000003 is an apocalyptic number.

999998000003 is a deficient number, since it is larger than the sum of its proper divisors (18796405).

999998000003 is a wasteful number, since it uses less digits than its factorization.

999998000003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18796404.

The product of its (nonzero) digits is 1417176, while the sum is 56.

It can be divided in two parts, 99999 and 8000003, that multiplied together give a palindrome (799992299997).

The spelling of 999998000003 in words is "nine hundred ninety-nine billion, nine hundred ninety-eight million, three", and thus it is an aban number.