198329039 has 2 divisors, whose sum is σ = 198329040. Its totient is φ = 198329038.

The previous prime is 198328997. The next prime is 198329059. The reversal of 198329039 is 930923891.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 198329039 - 2¹² = 198324943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198329059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99164519 + 99164520.

It is an arithmetic number, because the mean of its divisors is an integer number (99164520).

Almost surely, 2^198329039 is an apocalyptic number.

198329039 is a deficient number, since it is larger than the sum of its proper divisors (1).

198329039 is an equidigital number, since it uses as much as digits as its factorization.

198329039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976, while the sum is 44.

The square root of 198329039 is about 14082.9343178189. The cubic root of 198329039 is about 583.1703509480.

The spelling of 198329039 in words is "one hundred ninety-eight million, three hundred twenty-nine thousand, thirty-nine".