998622603 has 12 divisors (see below), whose sum is σ = 1573587288. Its totient is φ = 605225760.

The previous prime is 998622601. The next prime is 998622607. The reversal of 998622603 is 306226899.

It is not a de Polignac number, because 998622603 - 2¹ = 998622601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (998622601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5043450 + ... + 5043647.

It is an arithmetic number, because the mean of its divisors is an integer number (131132274).

Almost surely, 2^998622603 is an apocalyptic number.

998622603 is a deficient number, since it is larger than the sum of its proper divisors (574964685).

998622603 is a wasteful number, since it uses less digits than its factorization.

998622603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10087114 (or 10087111 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 998622603 is about 31600.9905382727. The cubic root of 998622603 is about 999.5406567027.

The spelling of 998622603 in words is "nine hundred ninety-eight million, six hundred twenty-two thousand, six hundred three".