998343903 has 8 divisors (see below), whose sum is σ = 1331280000. Its totient is φ = 665485208.

The previous prime is 998343817. The next prime is 998343949. The reversal of 998343903 is 309343899.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 998343903 - 2¹⁸ = 998081759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998343103) 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, 25798 + ... + 51596.

It is an arithmetic number, because the mean of its divisors is an integer number (166410000).

Almost surely, 2^998343903 is an apocalyptic number.

998343903 is a deficient number, since it is larger than the sum of its proper divisors (332936097).

998343903 is a wasteful number, since it uses less digits than its factorization.

998343903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38701.

The product of its (nonzero) digits is 629856, while the sum is 48.

The square root of 998343903 is about 31596.5805586617. The cubic root of 998343903 is about 999.4476626463.

The spelling of 998343903 in words is "nine hundred ninety-eight million, three hundred forty-three thousand, nine hundred three".