198429983 has 2 divisors, whose sum is σ = 198429984. Its totient is φ = 198429982.

The previous prime is 198429943. The next prime is 198430051. The reversal of 198429983 is 389924891.

It is a weak prime.

It is an emirp because it is prime and its reverse (389924891) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 198429983 - 2⁸ = 198429727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198429943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99214991 + 99214992.

It is an arithmetic number, because the mean of its divisors is an integer number (99214992).

Almost surely, 2^198429983 is an apocalyptic number.

198429983 is a deficient number, since it is larger than the sum of its proper divisors (1).

198429983 is an equidigital number, since it uses as much as digits as its factorization.

198429983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1119744, while the sum is 53.

The square root of 198429983 is about 14086.5177740987. The cubic root of 198429983 is about 583.2692733645.

The spelling of 198429983 in words is "one hundred ninety-eight million, four hundred twenty-nine thousand, nine hundred eighty-three".