198908603 has 2 divisors, whose sum is σ = 198908604. Its totient is φ = 198908602.

The previous prime is 198908597. The next prime is 198908609. The reversal of 198908603 is 306809891.

It is a balanced prime because it is at equal distance from previous prime (198908597) and next prime (198908609).

It is a cyclic number.

It is not a de Polignac number, because 198908603 - 2⁶ = 198908539 is a prime.

It is not a weakly prime, because it can be changed into another prime (198908609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99454301 + 99454302.

It is an arithmetic number, because the mean of its divisors is an integer number (99454302).

Almost surely, 2^198908603 is an apocalyptic number.

198908603 is a deficient number, since it is larger than the sum of its proper divisors (1).

198908603 is an equidigital number, since it uses as much as digits as its factorization.

198908603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 198908603 is about 14103.4961268474. The cubic root of 198908603 is about 583.7378520613.

The spelling of 198908603 in words is "one hundred ninety-eight million, nine hundred eight thousand, six hundred three".