998450603 has 4 divisors (see below), whose sum is σ = 1000833960. Its totient is φ = 996067248.

The previous prime is 998450591. The next prime is 998450617. The reversal of 998450603 is 306054899.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 306054899 = 5101 ⋅59999.

It is a cyclic number.

It is not a de Polignac number, because 998450603 - 2¹² = 998446507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (998450653) 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, 1191050 + ... + 1191887.

It is an arithmetic number, because the mean of its divisors is an integer number (250208490).

Almost surely, 2^998450603 is an apocalyptic number.

998450603 is a deficient number, since it is larger than the sum of its proper divisors (2383357).

998450603 is a wasteful number, since it uses less digits than its factorization.

998450603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2383356.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 998450603 is about 31598.2689873987. The cubic root of 998450603 is about 999.4832673667.

The spelling of 998450603 in words is "nine hundred ninety-eight million, four hundred fifty thousand, six hundred three".